Re: Energy from Dung in Karachi?!
In my area, alongwith the Lyari river, there are few fields left where they grow vegetables like palak, turi, loki etc. The guys have constructed a wall inside the rain drain nullah (but it always flows with dirty sewerage water - both domestic and industrial). The water accumulates there before spilling over the wall and they have put a water pump over there for watering the vegetables field!
Re: Energy from Dung in Karachi?!
And because of that wastewater (esp. industrial one), the crop quality deteriorates. Only natural composts make good fertilizers, which includes fruit/ veggie scraps, animal/ human feces - however, even this matter is not safe to be dumped in rivers and streams; or else it will affect marine life. And by the way water affected by industrial waste should not be used for watering plants or crops, or at least not without being treated. Untreated industrial waste deteriorates the soil quality and can potentially transmit harmful matter in the plant.
Re: Energy from Dung in Karachi?!
I'll tell ya this much. If energy from dung is effective there will be no dearth of bs that part of the world!
Re: Energy from Dung in Karachi?!
yes i know, but what about the sewerage system? if we could filtrate dung from sewerage and then use it for electricity - it is already being done in the middle east, although for watering plants - it would be really good. the idea of getting dung from cattle is also good, but dung is made from food (remember), and thus there is a potential of overgrazing.. so i don't wanna take that risk, plus if filtrated sewerage is used for the same purpose it would be wayyy more efficient. don't you think so?