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Zero Liquid Discharge Plants for Pharmaceutical and Bulk Drugs Effluent at Cuddalore


Top Left is the multi tier ETP housing a two stage activated sludge plant with each aeration tank of 6.5 m liquid depth and fitted with German made tubular membranes preceded and followed by physical chemical treatment. Top Right is the tertiary treatment in sand and carbon filtration. Bottom left is the disc R O membranes. Bottom right is the thermal evaporator and crystallizer. These units together makes it distinctly possible to attain resource recovery and zero liquid discharge

Client Shasun Chemicals and Drugs Limited, Cuddalore
Project Project Management Consultants from concept to commissioning for zero liquid discharge
Role Project Managers
1. Study of existing practices of in-house generation of effluents
2. Effluent sampling, analysis and statistical validation of design basis
3. Laboratory treatability study for bacterial metabolism and kinetics
4. Laboratory batch scale ozonation studies and establishing kinetics
5. Developing treatment process for potential zero discharge upgrade later
6. Development retrofit to existing ETP, layout and hydraulics for new ETP
7. Preparation of tender document and evaluation of tenders
8. Inspection and certification of equipments and off-site deliveries
9. Certifying specific alignments of high speed centrifuge systems
10. Certifying the aeration capacities of fine bubble deep aeration systems
11. Interactions with client, civil and equipment contractors & P C Board
12. Supervision of construction, trial run, test run and commissioning
Status The assignment started in 2002 and was commissioned successfully in 2004
Result The results are a peaceful existence for the industry without any worries of pollution.

Parameters BOD COD pH SS Sulphide Colour Odour
Raw effluent 4400 17850 7.8 340 nil Dark Black Astringent
ETP Effluent 90 2850 8.7 50 nil Pale Yellow BDL
Permeate Nil 50 7.2 Nil Nil Nil Nil
   

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