FAQ - Effluent & Sewage Treatment Plants

Check out our FAQs pages for answers to commonly asked questions. We hope that you will find the answers to all your questions. Your question still not answered? Either email us at: info@greensolutionskerala.com or phone us at: 0484-3193051.

What are the constituents of sewage ?

Waste water contains dissolved solids (minerals), higher levels of suspendes solids (which gives black colour to the sewage), protiens, carbo hydrates, oils and fats. Most of these materials are biodegradable and hence they consume oxygen during the bacterial action of degradataion. The consumption of oxygen is called Bio Degradable Oxygen demand (BOD). Typically a domestic sewage would contain approximately 300 to 450 mg/litre of BOD and COD on an average. Sewage also contains harmful bacterias like e coli. Some chemicals such as detergents and disinfectants used in house hold purpose also contaminate the water and consume available oxygen in the seage water which is calle d Chemical Oxygen demand (COD).



Other Questions

  1. What is Effluent?
  2. What are the constituents of sewage ?
  3. Why treat waste water ?
  4. How is waste water treated ?
  5. What are the modern techniques in the sewage treatment?
  6. What is the difference between a septic tank and a sewage treatment plant?
  7. How much waste water is generated in a residential and commercail complex?
  8. Who will install the treatment plant?
  9. What about the operating costs for an STP?
  10. What is the payback period?
  11. What is the space requirement?
  12. What are the advantages of Modular design STP ?
  13. Does the Sewage Treatment Plant produce any nasty odours?
  14. Does the plant make a noise?
  15. How long would it take for STP to be fully operational with bacteria?
  16. What is the quality of effluent from these plants?
  17. What is BOD5?
  18. Should I put extra bacteria inducing sachets into the tank on a regular basis?
  19. What is sludge?
  20. What are the problems that can be expected with an installed STP?
  21. Will paper towels, sanitary towels, etc, clog up my system?
  22. Can I use normal household cleaning chemicals?
  23. Does it take septic tank effluent?
  24. I like to do a number of loads of washing on one day, will this overflow the system?
  25. Our hotel is a holiday home, what happens if I turn the STP off ?
  26. What happens if there is a power cut?
  27. How often does the Sewage Treatment Plant need to be serviced?
  28. What is a kind of maintenance required?
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