Engineering Process

D r. N. Chandrasekhara Rao

Senior Projects Manager - Reserch development & Plant Operaration

Admin Block, Commercial Hub, JNPC, Road No.13,

Parawada Mandal, Visakhapatnam – 531 019,

Andhra Pradesh, INDIA. Tel: 91-917*******/995-***-****

E- mail: ace9x8@r.postjobfree.com

D ate of Birth : 09-04-1966

Ma rital Status: M arried

Academic Qualifications

I ndian I nstitute of Chemical Technology (I ICT), Hyderabad, I ndia

Ph.D. in Bio and Environmental Engineering 1999 -2005

Defended thesis (Faculty of chemistry) from N ational Institute of

Technology, Warangal, India

D issertation: “ Sequencing batch reactor technology for the treatment of complex chemical process

wastewater ”

Andhra University, Vishakapatnam

M .Sc. in Environmental Science

1992- 1995

Thesis:“ Méthane Production génération From Industrial Wastewater Through Anaerobic Fermentation In

A suspended Biofilm Reactor ”.

Nagarjuna University, Guntur, I ndia

B.Ed. in Biological science 1990-1992

Nagarjuna University, Guntur, I ndia

B.Sc. in Biology 1987-1990

Co-curricular activities

NCC certificate ‘C’ with rank LFC in unit 8 Andhra Air Sqn NCC, Vijayawada in 1990.

Diploma in French language duration of 1994 academic year in Andhra University

P rofessional experience

1. Nov. 2008 – Till date: Senior Projects Manager (Reserch development and Plant Operations head )

M /S Ramky Pharmacity India Ltd, Jawaharlal Nehru Pharma City JNPC, Vizag, India.

2. Sept-2007 - Sept-2008 : Senior Post-doctoral Research Associate working in Department of

B iomedical Engineering and Environmental Science,National Tsing Hua University, Hsinchu.Taiwan.

Project: Fabrication of sensors for toxic compound detection in the environment

3. March 2006 – March 2007: Post-doctoral Research Fellow, Optimisation Lab of Environmental

Conception and Engineering, Polytech’ Savoie University, Le Bourget Du Lac 73376, France.

Project: A naerobic Moving Bed Biofilm Reactor

4. Feb 2005 – Feb 2006: Post-doctoral Research Associate, B iomedical Engineering and

Environmental Science, National Tsing Hua University Hsinchu.Taiwan.

Project: Remediation of radionuclicide compounds (Cs and Sr) using Geobacter sulfurreducens

species

5. Oct 1999 – Feb 2005: Senior Research Fellow, I ndian Inistitute of Chemical Technology (Council of

Scientific and Industrial Research [CSIR], New Delhi), worked for PhD and awarded by National Institute

Technology, Warangal, India.

Dissertation: Sequencing batch reactor technology for the t reatment of complex chemical process

wastewater

D etails of Research Publications and Patent

Total Number of Research Articles Published : 49

N umber of chapters contributed for books : 03

N umber of Research Articles Published in Journals : 22

Number of Research Articles Published in Conference Proceedings: 22

Number of Research article communicated : 02

Patents : 02

Details of Professional and research experience

Present job work and experience since November 2008

Working as a Senior project Manager for the biological wastewater research development and

p lant operation, Ramky Enviro Engineers Ltd, Jawaharlal Nehru Pharma City ( JNPC),

V isakhapatnam, developed by Ramky Group which is one of the leading environmental and waste

management organization in India. The JNPC is a global destiny for manufacturers of bulk drugs, active

pharmaceutical ingredients, and intermediates. Ramky group was the main developer for this prestigious

world class Pharma City. T he job profile use to collection and treatment of JNPC member industries

e ffluents through various biological routes. We d eveloped various new process for bulk pharmaceutical,

paper, tannery and textile industrial wastewaters treatment such as membrane bioreactors, suspendes

b iofilm and moving bed biofilm reactor, heavy metal séparation, implémentation of sequential batch reactor

for the reduction of organic strength and ammonical nitrogen, and zero discharge of liquid trade effluents.

P roficient in

Experience in complex chemical wastewater treatment with updated technologies using different

b ioreactor configurations

specialist in the area of water treatment and wastewater t reatment

Experience, commissioning and operation of common effluent treatment plant (CETP) of pharma

i ndustry, textile industry, paper industry and tannery industry wastewaters at different locations

across the India.

Experience and operation of multiple effect thermal evaporators (five stage with heat recovery

m ultistage)

Development of pilot scale membrane bio reactor process for bulk pharmaceutical waste water using

external membrane.

Integrating the different kind of technologies from different countries to make successful model

Coordinating on environmental clearance process

Granular biofilm reactor and Moving Bed Biofilm Reactor application on industrial wastewater

t reatment

Membrane Bioreactor application on different industrial wastewater

Periodic discontinuous process (sequential batch reactor technology -SBR) for complex wastewater

t reatment and process and rector configuration optimization

Bioremediation of contaminated soil by i n situ and bioslurry phase processes

Biohydrogen production from industrial wastewater through anaerobic fermentation

Bioaugmentation strategies to enhance bioprocess performance

Developed the composting process, root zone treatment for lean stream effluent for pharmaceutical

waste

Development of safety management system in pharmaceutical/process industry

Development of monitoring laboratory for air, water, wastewater, hazardous waste.

Monitoring the air quality and its management by using continuous monitors equipped in mobile van

and fixed/online stations

Training and developing the team comprising, chemical engineers, mechanical engineers, chemist&

operators cum technicians for smooth operation of the treatment systems

Overall improving the environment management system comprising operations, monitoring, auditing

and development divisions

Procurement of chemicals and consumables and equipment from International suppliers.

Post Doctoral Senior Research Fellow since 2007 September to October 2008

Worked with Prof. Ruey an-Doong in Taiwan as a Senior Post-doctoral Research associate under National

Science Council Fellowship program on “fabrication of Silica gold, iron-gold and Novel coreshell nanomaterials

and it applications on the detection of toxic compound molecules in the environment”.

Post Doctoral Research Fellow, U niversite de Savoie Technolac, France 2006 - 2007

T he theory and practice of municipal waste treatment digestion is well established and practiced for years.

However, the treatment of food industry waste has gained attention recently. Most of the work known and

published has been on swine manure treatment. Current dairy manure management practices themselves pose

a b ig environmental problem and the bioreactors operation concerned to dropping pH, VFA accumulation and

sludge washout. So in order to rectify the problems with food industry wastewaters two lab scale “anaerobic

moving bed biofilm Reactor” and other conventional anaerobic reactors were set up to digest anaerobically to

make process effective and cost efficient by enhanced Biogas recovery.

Post Doctoral Research Associate, National Tsing Hua University

Carried out research with Prof. Ruey an Doong group on the remediation of radionuclicide compounds (Cs and

S r) employing Geobacter sulfurreducens species. This work was aimed to provide a view of sorption of

r adionuclicides (Sr and Cs) using dissimulator iron-reducing bacteria (DIRB) and to highlight recent advances

i n the application of these processes to the detoxification of radionuclicides w ith using anoxic metabolic function.

H umic acid were also used as a shutling compound in the electron transfer processes. Highly selective sorption

by G. sulfurreducens was observed and the equilibrium concentrations were monitored by the ICPCHEM.

L aboratory experiments have demonstrated that Fe(III)-reducing bacteria have the potential to play a role in

t he bioremediation of radioactive waste.

I ndian I nstitute of Chemical Technology

Joined as a Project Assistant for assisting the Scientists in the completion of different projects on

b iological wastewater treatment. Later, I was selected as a Senior Research Fellow, CSIR, New

D elhi, under the supervision of Dr. S. Venkata Mohan, Senior scientist in I ICT for PhD.

Brief Outline of PhD Dissertation Work

Investigated the application of periodic discontinuous process using sequencing batch reactor (SBR)

technology for treating complex chemical wastewaters.

Studied the relative efficiency of various reactor configurations such as suspended growth, biofilm,

g ranular, immobilized and granular activated carbon (GAC)

Granulation biofilm process on various metabolic functions (aerobic and anaerobic) on the process

performance

Investigated the influence of metabolic shift on the process performance

Studied the multiphase microenvironment/redox condition variation on the process performance during

sequence phase operation.

To elucidate the application of Taguchi dynamic design of experimental (DOE) methodology for

optimization of anaerobic process

To explore the effect of bioaugmentation strategy to enhance the process performance.

B hagavathi Ana Labs (Environmental Consultancy)

Worked as a Environmental Chemist during 1997-1999 which involves the responsibilities like characterization

of drinking water, wastewater and air monitoring analysis for environmental impact assessment reports.

P roject Leader, Watershed program, NWDPRA

Worked as a Project Leader in the area of mogili watershed program during 1995-1996, Adilabad district, India

( NWDPRA, Govt.of India) for the conservation of soil and water using different constructive works like loose

boulders, cush plantation, rock full check dams, plantation programmes, rural professionals and economic

development activities and water harvesting structures.

D etails of Research Work Done

Broad Area of Research : I ndustrial wastewater treatment by biological and environmental monitoring

A. Basic Research

1. Sequential batch reactor (SBR) technology is being investigated for treating complex chemical effluents and

xenobiotic compounds, adopting various reactor configurations (suspended, biofilm and immobilized system) by

aerobic and anaerobic process. Process optimization, hybrid reactor design, sequence variation, application to

real field wastewater, process understanding with population dynamics also forms part of this study (PhD

D issertation Work)

2. Developed specialized consortia for treating hypersaline wastewater. Investigated the potential of free and

i mmobilized cells in degrading various inhibitory chemicals. Developed a method to estimation the

b iodegradability of wastewater using immobilized biosensing granules. Isolation of potential microorganism

species for degradation of pesticides, toxic compounds, aromatic dyes, etc.

3. Biohydrogen production was studied in batch fermentation studies using chemical wastewater as substrate

and optimized the process parameters for subsequent upscaling (PDF work)

4. Novel reactor strategy adopting two phase portioning bioreactors for treating highly concentrated toxic

compounds is being evaluated for process parameters evaluation, application of specific and mixed population

b iomass, appropriate organic solvent selection, free cells and immobilized cells application, optimum reactor

design, etc.

5. Biological methods for the treatment of chemical effluents employing various aerobic (suspended growth

p rocess by acclimatized sludge and specifically isolated and prepared consortia) and anaerobic (fixed film,

suspended film, hybrid and UASB reactor configurations) systems. Biodegradation of H-acid simulated

wastewater by acclimatized mixed consortia using anaerobic fixed film up-flow system. Comparative study of

color removal from distillery spent wash on raw and anaerobically treated waste.

6. Solid phase i n-situ b ioremediation for remediation of pesticide-amended soil was evaluated for their

efficiency for application to real field situations.

7. Application of Bioslurry phase reactor by cyclic batch mode operation for the remediation of pesticide

amended soil and bioprocess monitoring. Soil water ration, aqueous phase pH, co substrate addition,

b ioaugumentation, biomemetic procedure, sorption interaction on the slurry face enhancement was studied.

8. Bioaugumentation strategy was successfully applied for enhancing anaerobic reactor performance by means

of inoculating sulphate-reducing bacteria in immobilized form (polymer matrix). Bioslurry reactor performance

was enhanced by means of augmenting with domestic sewage and specific strains.

B. Applied Research

1. Process parameters monitored in full scale anaerobic suspended contact reactor (110 m 3) for treating

chemical industry effluent.

2. A process to treat bulk drug effluent using anaerobic fixed film reactor.

3. Process demonstration for hypersaline effluent treatment by ASP at 3.5% of TDS levels

4. Laboratory and pilot plant studies for the common chemical effluents treatment using UASB reactor and

activated sludge unit

5. Executed pilot scale anaerobic fixed film reactor facility for treating bulk drug effluents.

6. Assisting for the preparation of Environmental Auditing Statement (Form V).

7. Rapid Environmental Impact Assessment studies for M/S BPCL LPG bottling plant at Nagpur, Pune and

Goa

8. Identifying for mercury in environmental matrix and soil remediation for mercury bound soil matrix.

Conferences/Seminars/Symposiums Attended

1. Diamond Jubilee seminar on “Chemical engineering-global challenges” 2004, I ICT Hyderebad, 10th January.

2. 16th National Symposium on catalysis and 1st I ndo-German Conference on Catalysis, Indian Institute of

Chemical Technology, Hyderabad, Feb 6-8, 2003.

3. Indo-German seminar on Environment and Community Health, I ICT, Hyderabad, 21-22 Nov, 2002.

4. Indian Chemical Engineers Congress-2002, Hyderabad, 19-22 Dec, 2002

5. National Symposium on “Environmental problems and solutions- presentation of case studies”. Department

of Environmental Science, Osmania University, January 22-23, 2000.

6. Organized and participated in Symposium on “Emerging Trends in Biotechnology for the New Millennium”,

A IBA, Hyderabad, February 26-27, 2000.

7. Presented a paper at International Conference on “Microbial Biotechnology trade and public policy” held at

Osmania University, Hyderabad during July 15-17, 2000.

Fellowships

1. National Science Council Foundation Fellowship (2008) by Taiwan government for carrying out Post-

doctoral research

2. Prestigious De La region Rhone Alpes Foundation Fellowship (2007) by France for carrying out Post-

doctoral research

3. Senior Research Fellowship by CSIR, Government of India for carrying out the doctoral research

Workshops Attended

1. International work shop on Radioactive waste materials and their treatment methods December.

National Thing Hue University, Taiwan, Dec 9 the -12 the 2005.

2. Work Shop on “Hydrogen as alternative fuel-emerging technologies” organized by Institute of Science

and technology, Jawaharlal Nehru Technological University, Hyderabad on March 16th 2005.

P rofessional Memberships

1. Indian Association for Environmental Management (IAEM)

2. Indian Society of Analytical Scientists

Consultancy/Projects completed

1. Project execution member of pilot scale anaerobic moving bed biofilm reactor (35 m 3) for treating

cheese industrial permeate and permeate blush wastewater ( Biotechnologies and Process

E ngineering for the Environment Universite de Savoie technolac Chambery, 73376 Le Bourget Du

L ac Cedex,France)

2. P roject execution member of full scale anaerobic suspended film up flow reactor (110 m 3) for treating

chemical wastewater (M/S Gland Chemical Ltd., Hyderabad).

3. A p rocess to treat bulk drug effluent employing anaerobic fixed film reactor for M/S NATCO industries,

Kothur, Hyderabad was developed.

4. P rocess development and demonstration for hypersaline wastewater treatment at 3.5% of TDS levels (M/S

J ETL, Hyderabad)

5. L aboratory and pilot plant studies for the composite chemical wastewater treatment using UASB and

ASP for CETP application (M/S Bulk Drug Association, Hyderabad)

6. P roject executed member of pilot scale anaerobic fixed film reactor facility for treating bulk drug

effluents (M/S NATCO, Kothur under PASTER Program sponsored by DSIR)

7. Demonstration of alcohol production using yeast based crystals at a scale of 100/1000 liters at M/S Gauri

I ndustries Ltd., Gauribidanoor.

8. REIA studies for LPG bottling plant at Nagpur, Pune and Goa (M/S BPCL)

9. REIA study for Hazardous waste secured landfill facility and for process conversion from mercury based

to membrane based technology (M/S The Andhra Sugars Ltd. Kovvur)

10. Identifying of mercury in environmental matrices and mercury bound soil remediation (M/s Andhra

P radesh Pollution Control Board).

11. REIA study for M/S Andhra Sugars, Kovvur for conversion of mercury cell plant to membrane cell.

A. Details of peer – reviewed journal articles and Patents

B iological wastewater treatment

1. S. Venkata Mohan, Y. Vijay Bashkir, P. Mural K rishna, N . Chandrasekhara Rao, V. Lalit Babu and P.N.

Sarma. (2007).Biohydrogen production from chemical wastewater as substrate by selectively enriched anaerobic

m ixed consortia: Influence of fermentation pH and substrate composition.International journal of hydrogen

E nergy.2, 2286-2295.

1. S. Venkata Mohan, N . Chandrasekhara Rao and P.N. Sarma. (2007). Low-biodegradable composite

chemical wastewater treatment by biofilm configured sequencing batch reactor (SBBR). Journal of Hazardous

M aterials, 144, 1-2, 108-117

2. S. Venkata Mohan, N . Chandrasekhara Rao and P.N. Sarma.(2007). Composite chemical wastewater

t reatment by biofilm configured periodic discontinuous batch process operated in anaerobic metabolic

f unction.Enzyme and Microbial Technology, 40,5,1398-1406

3. N. Chandrasekhara Rao, S Venkata Mohan and P N Sarma. (2005). Complex Chemical Wastewater

T reatment by Sequencing Batch Reactor with Granular Carbon Biofilm Configuration. J Haz Materials, 124,

59-67.

4. S Venkata Mohan, N C handrasekhara Rao, K Krishna Prasad, P Murali K rishna, R Sreenivasa Rao

and P N Sarma. 2005. Anaerobic Treatment of Complex Chemical Wastewater in a Sequencing Batch Biofilm

Reactor: Process Optimization and Evaluation of Factor Interactions Using the Taguchi Dynamic DOE

Methodology. Biotechnology and Bioengineering 40(6), 732 - 745.

5. S.Venkata Mohan, K K rishna Prasad, N C handrasekhara Rao, Y V ijaya Bhaskar, V Lalit Babu, PN

Sarma. (2005). Biological treatment of low-biodegradable composite chemical wastewater using upflow

anaerobic sludge blanket (UASB) reactor: process monitoring. Journal of Scientific and Industrial Research,

64(10), 771-777.

6. S.Venkata Mohan, N C handrasekhar Rao, P N Sarma. (2005). Simulated acid azo dye wastewater

t reatment in anoxic-aerobic-anoxic microenvironment using suspended growth configured sequencing batch

reactor (SBR).American Journal of Biotechnology and Biochemistry (Revised).

7. S.Venkata Mohan, N C handrasekhar Rao, S Sitla, PN Sarma. (2005). Ultrasonic irradiation studies

to enhance biodegradation of 4-hydroxy 5-amino 2,7-napthalene disulphonic acid (H-acid). Int J Environ Poll

(Revised).

8. Venkata Mohan S, N C handrasekhara Rao, K K rishna Prasad, Madhavi and P N Sarma. (2005).

T reatment of complex chemical effluents by sequenctial batch reactor (SBR) with aerobic suspended growth

configuration. Process Biochemistry, 40(5), 1501-1508.

9. S. Venkata Mohan, N . Chandrasekhara Rao, K . K rishna Prasad and P. N.Sarma. 2005.

B ioaugmentation of anaerobic sequencing batch biofilm reactor (AnSBBR) with immobilized sulphate-reducing

bacteria (SRB) for treating sulphate bearing chemical wastewater. Process Biochemistry 40, 2849 – 2857.

10. S Venkata Mohan, K K rishna Prasad, N C handrasekhara Rao, Y V ijaya Bhaskar,V Lalit Babu,,D

Raja opal,,and P N Sarma. (2005). Biological treatment of Low – Biodegradable composite chemical wastewater

using upflow anaerobic sludge blanket (UASB) reactor: Process monitoring. J ournal of scientific & Indu

Research., 64,771-777.

11. A G Rao, N C handrasekhara Rao, K . K Prasad. G V Naidu, S. Venkata Mohan, A Jetty and P N

Sarma. (2004). Anaerobic treatment of pharamaceutical wastewater in fixed film reactor. Bioresource

Technology, 93, 241-247.

12. A G Rao, K. K Prasad. G V Naidu, N C handrasekhara Rao and P N Sarma. (2003). Removal of

sulfide in integrated anaerobic–aerobic waste water tratment system . Clean tech Environ policy., 6, 66- 71.

13. Venkata Mohan. S, N C handrasekhara Rao and K K rishna Prasad. (2002). Treatment of simulated

Reactive Yellow 22 (azo) dye effluents using Spirogyra Sp. Waste Manag., 22, 575-582.

14. Venkata Mohan. S, N C handrasekhar Rao, and K K rishna Prasad. (2002). Biological

decolorization of simulated basic dye effluents by algal spirogyra species. Asian J M icrobiol Biotech Env Sc.,

4(1), 107-111.

15. S. Wang, N . Chandrasekhara Rao, R. Qiu, R. Moletta. Performance and kinetic evaluation of

anaerobic moving bed biofilm reactor for treating milk permeate from dairy industry. Bioresource Technology

100 (2009) 5641–5647.

16. Shizhong Wang, N unna Chandrasekhara Rao, Rongliang Qiu, René Moletta . T reatability and

k inetic analysis of anaerobic moving bed biofilm reactor treating high strength milk permeate. Desalination

a nd Water T reatment 4 (2009) 191–197 April

Enzyme production and application to environmental remediation

17. Venkata Mohan, S, K K rishna Prasad, N C handrasekhara Rao, and P N Sarma. (2005). Enzyme

mediated degradation of acid azo dye in aqueous phase. Chemosphere, 58, 1097-1105.

Soil bioremediation

18. S.Venkata Mohan, R Sirisha, N C handrasekhara Rao, P N Sarma and S J Reddy. (2004).

Degradation of chlorpyrifos contaminated soil by bioslurry reactor operated in sequencing batch mode:

B ioprocess monitoring. J Hazardous Materials, B116, 39-48.

Adsorption and physicochemical methods

19. M Pratap Reddy, N C handrasekhara Rao, K K rishna Prasad, S. Venkata Mohan, P N Sarma,

V.Durga Kumari and M Subrahmanyam..(2002). Photocatalytic t reatment of common industrial wastewater.

I ndian Journal of Environmental Protection, 22, 1253-1256.

20. Venkata Mohan. S, N C handrasekhara Rao and J. Karthikeyan (2002).Adsorption removal of

d irect azo dye from aqueous phase onto coal based sorbents: a kinetic and mechanistic study. J

H azardous Materials, 90(2), 189-204. [ cited for 47 times since 2000 and received place in the top 1%

w ithin its field and is highly influential and making a significant impact among colleagues in the

f ield of study according to Essential Science Indicators, T homson Scientific].

B. Patent

1. S.Venkata Mohan, P N Sarma, N C handrasekhara Rao, K Krishna Prasad, and K V Raghavan. 2004.

Development of sequential batch reactor technology with biofilm configuration for the treatment of complex

chemical and pharmaceutical effluents. (PCT. No. WO 2004/087583 A1)

2. S.Venkata Mohan, Y. Vijaya Bhaskar, N C handrasekhara Rao, V. Lalith Babu, P N Sarma, 2006.

A naerobic fermentation of hydrogen production from composite chemical wastewater as selectively enriched

m ixed microflora : Influence of fermentation pH, HRT, and substrate composition

C. Chapters in Books

2. S.Venkata Mohan, N C handrasekhara Rao, K K P rasad, P N Sarma. (2003). Bioaugumentation of

anaerobic sequential batch biofilm reactor (ASBBR) with immobilized sulfate reducing bacteria (SRB) to

enhance process performance. I n Wastewater Treatment and Waste Management (Edt: V P Singh, R N Yadava),

A llied Publishers Pvt. Ltd., New Delhi, p 185-196

3. N.Chandrasekhara Rao, S.Venkata Mohan, P N Sarma. (2003). I ndustrial wastewater treatment by

sequential batch reactor (SBBR) adopting biofilm configuration. I n Wastewater Treatment and Waste

M anagement (Edit: V P Singh & R N Yadava), Allied Publishers Pvt. Ltd., New Delhi, p 112-116.

4. N.Chandrasekhara Rao, S.Venkata Mohan, (2005). Periodic discontinuous biological operation to enhance

b iological process efficiency for wastewater remediation (Chapter 37). In BPS Publication, Hyderabad.

D. Cont ributions in Academic Conferences

1. S.Venkata Mohan, N C handrasekhara Rao, V Lalit Babu, Y Vijaya Bhaskar, K Krishna Prasad and

P N Sarma. 2005. Influence of TDIS concentration on the performance of biofilm configured periodic

d iscontinuous process of wastewater treatment. Proc of National seminar on “Relevance of common effluent

t reatment plants for environmental protection”, JETL, PETL and JNTU, 10th -12th M arch, 2005.

2. S.Venkata Mohan, N C handrasekhara Rao, P N Sarma. 2005. Effect of Reactor Microenvironment

Variation Process Performance Treating Combined Complex Chemical Wastewater. Proc of National

seminar on “Relevance of common effluent treatment plants for environmental protection”, JETL, PETL

and JNTU, 10th -12th M arch, 2005.

3. S Venkata Mohan, N C handrasekhara Rao, P N Sarma. 2005. Microenvironment/redox condition

i nfluence on process performance of periodic discontinous process treating chemical wastewater. Proc of

B iohorizon 2005-the 7th national symposium on biochemical engineering and biotechnology, I IT, Delhi,

M arch 11-12, 2005

4. S Venkata Mohan, Y V ijaya Bhaskar, N C handrasekhara Rao, K K Prasad, P Muralikrishna, P N

Sarma. 2005. Hydrogen production from chemical wastewater treatment in biofilm configured sequencing

batch reactor operated in anaerobic environment. Proc of Biohorizon 2005-the 7 th national symposium on

b iochemical engineering and biotechnology, I IT, Delhi, March 11-12, 2005.

5. S Venkata Mohan, N C handrasekhara Rao, P N Sarma. (2004). Effect of microenvironment variation

i n SBR operation for complex wastewater treatment. Proc of National seminar on new horizons in

environmental science and engineering in India, Bangalore University, Bangalore, November 17-19.

6. S.Venkata Mohan, N C handrasekhara Rao, KK Prasad, P N Sarma. (2004). Process parameter

optimization of hydrogen production by anaerobic mixed consortia treating complex chemical wastewater.

P roc of National seminar on new horizons in environmental science and engineering in India, Bangalore

U niversity, Bangalore, November 17-19.

7. N Chandrasekhara Rao, S Venkata Mohan, P N Sarma.(2004). Aerobic GAC biofilm configured

sequencing batch reactor (SBR) for treatment of complex wastewater. Proc of National seminar on new

horizons in environmental science and engineering in India, Bangalore University, Bangalore, November 17-

19.

8. S. Venkata Mohan, N . Chandrasekhar Rao and P.N. Sarma (2003). Chemical Wastewater Treatment

by Anaerobic Sequential Batch biofilm Reactor (ASBBR) with Biofilm Configuration. Proc of National

Conference on Advances in Environmental Science and Engineering, I IT Bomaby, Dec 8-0.

9. S.Venkata Mohan, N C handrasekhara Rao, K K rishna Prasad and P N Sarma. Bioaugmentation of

anaerobic sequential Batch biofilm reactor (ASBBR) with immobilized sulphate-reducing bacteria (SRB) to

enhance process performance. Proc Int Conf water and environment: Planning, development, utilization,

conservation and Management, RRL, Bhopal, Dec 15-18, 2003

10. N Chandrasekhara Rao, S.Venkata Mohan and P N Sarma. Industrial wastewater treatment by

sequential batch reactor adopting biofilm configuration. Proc Int Conf water and environment: Planning,

development, utilization, conservation and Management, RRL, Bhopal, Dec 15-18, 2003

11. N Chandrasekhara Rao, S.Venkata Mohan and P N Sarma. Fermentation of complex chemical

wastewater by anaerobic sequential batch biofilm reactor (ASBBR) for renewable energy. Proc Seminar

Fermentation technology, Karpagam Arts and science College, Coimbatore, Sep 26-24, 2003

12. S.Venkata Mohan, K K rishna Prasad, N C handrasekhara Rao and P N Sarma. Enzyme catalyzed

acid azo dye degradation. P roc. 16th N ational Symposium on catalysis and 1 st I ndo-German Conference on

Catalysis, I ndian Institute of Chemical Technology, Hyderabad, Feb 6-8, 2003.

13. S.Venkata Mohan, N C handrasekhara Rao and P N Sarma. Chemical effluent treatment by

sequential batch reactor adopting suspended growth configuration. P roc Appropriate Technologies for

I ndustrial Pollution Control and Environmental Management, Sri Venkateswara University, Tirupati, Nov,

2002.

14. K. K rishna Prasad, S Venkata Mohan, N C handrasekhara Rao and P N Sarma. Aerobic oxidation of

H acid by acclimatized mixed suspended biomass. P roc Appropriate Technologies for Industrial Pollution

Control and Environmental Management, Sri Venkateswara University, Tirupati, Nov, 2002.

15. N.Chandrasekhara Rao, S.Venkata Mohan, G. Venkata Naidu and P.N.Sharma, Application of

sequential batch reactor (SBR) for treating complex chemical effluent. P roc. Indian Chemical Engineers

Congress (Chemcon) 2002, Hyderabad, 2002, Dec 19-23

16. S. Venkata Mohan, N .Chandrasekhara Rao and P.N.Sharma, Comparative performance of

suspended and attached biomass in sequencing batch operation, P roc. Indian Chemical Engineers

Congress (Chemcon) 2002, Hyderabad, 2002, Dec 19-23

17. S.Venkata Mohan, K.Krishna Prasad, N .Chandrasekhara Rao, A.G.Rao, P.N.Sarma and

S.V.Ramakrishna. (2001). A Study to enhance biodegradation of azo dye by ultrasonic i rradiation. P roc 3rd

N ational Symposium on Biochemical Engineering and Biotechnology (BIOHORIZON 2001), I IT Delhi, 23-

24th February.

18. S.Venkata Mohan, N .ChandraSekhara Rao, K .Krishna Prasad, and S.V.Ramakrishna, (2000).

M icrobial degradation of carbaryl (1-napthyl N-methyl carbamate) pesticide using R hodococus Species. Proc

of I nternational Conference on “Microbial Biotechnology trade and public policy”, Osmania University,

H yderabad during 15-17th J uly, 2000.

19. Annaporna Jetty, Venkata Mohan, S. C handrasekhara Rao, N. and Ramakrishna, S.V. (2000):

Aerobic oxidation of hyper saline organic waste using specialized mixed saline resistant consortia in

activated sludge processes. P roc of the National Symposium on Environmental Problems and Solutions:

P resentation of Case studies a t Osmania University during 22-23 January.

20. S. Venkata Mohan, R.S. Prakasham, P. Komaraiah, N. Chandrasekhara Rao, and Ramakrishna, S.V.

(2000): Development of bicatalytic granules for the measurment of biological oxygen demand in industrial

effluents. Proceedings of the N ational Workshop on Catalysis-Forays into non-traditional Areas, I ICT, Jan

7-8.

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composite wastewater treatment by moving bed configured sequencing batch biofilm reactor (SBBR). Effec

of Emmisions & Effluents on Environment, A .U College of Engineering, Visakhapatnam, Dec 23 -24.

R EFERENCES

Dr. S. Venkata Mohan

Senior Scientist

Bioengineering and Environmental Center

I ndian Institute of chemical Technology

Tarnaka Hyderabad –500007

Email: v mohan–ace9x8@r.postjobfree.com

P rof. Ruey- an Doong

Department of Biomedical Engineering and Environmental Sciences

National Tsing Hua University

Hsinchu, 30013, Taiwan

E mail: r ace9x8@r.postjobfree.com

P rof. K. Laxma Reddy

P rofessor

Department of Chemistry

National Institute of technology

Warangal, AP, India.

Email: n ace9x8@r.postjobfree.com

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