Indian Politics & Policy Volume 1, Number 2, Fall 2018

Parameters of Successful Wastewater Reuse in Urban India Em: It has some smell too ... UK: They collect water in a tank and filter it and give it to us in a tanker, whereas the piped water they again pass it through the filter and then pump it to us. NM: So STP pipe water is coming through the Kejriwal Point, and water by tanker is not from the Kejriwal point? UK: Yes ... both are different. NM: They are saying there is smell in the tanker water. AK: Of course, we have just seen the outflow from the STP in the big drain ... it’s too smelly and water is very dirty ... UK: They make fertilizers from that ... NM: They call it sludge ... UK: You have had seen that on the back side they have a tank where they collect treated water. In that tank, there are wood saw and earthworms, these earthworm feed on that dirty water and clean it, purify it, then what comes out is this water ... they replace it about in six months ... they pour new earthworms ... to clean the water ... earthworms survive on dirt ... AK: So, he is talking about the same treatment plant of Kejriwal ... have seen that ... and that water comes here. UK: Tanker water is not from this plant, it is from the STP only ... NM: It means tanker is not taking water from Kejriwal point but taking water before this point. AK: Because Kejriwal points water comes here for vehicles ... this is the best water from that treatment plant, by using earthworms etc. ......... Em: What difference we will have in groundwater and DJB water, the same difference is here too ... groundwater would look clean and clear in a glass and DJB water would also look the same but only a machine can tell you about the quality of water. AK: So, the water which comes from Kejeriwal’s plant that does not have smell ... UK: No.. Em: They add some chemical in it ... separately. UK: They filter it and then add ... AK: Add chlorine ... UK: No, not chlorine, they add something else ... Em: They add some chemical. AK: Okay, so a membrane is there and water goes through the membrane and becomes drinkable. UK: Yes ... They have written there very clearly and I have seen that ... and perhaps they have shown Kejriwal drinking this water... NM: Yes. UK: So when their Engineer came, who 101

Indian Politics & Policy Volume 1, Number 2, Fall 2018 | Page 104