Total sewage discharge from 10000 people would be approx. 135 lit x 10000 = 1350 m3 or 13.5 lakhs lit. There may be two ways to treat the water
1. Electro chemical process
2. Natural Biological Process
First one Installation cost would be approx. $ 1,40,000.00 including pump, blower, filters, UV lamp, resourver etc & Running cost would be approx. $ .1 X 1350 = $ 135 Per day
Second one requires a 3 hp self priming pump, sand filter bank of 03 layers, soil digged pond of suitable capacity, dosing system, green water plants, fishes etc.Cost would be approx $ 35,000.
water may be reused for gardening, flushing, car washing, construction etc. Manure may reused as fertilisers.