These alternative methods of disposal will not only greatly reduce solid waste volumes, but also reduce disposal costs simultaneously. 這些替代方法處置，不但會(huì )大大減少固體廢物量，但同時(shí)也減少處置成本，同時(shí)。
The liquid manure is still a major source of environmental pollution, although the way of separating solid and liquid manure reduces the environmental effect in certain extent. 雖然采取固體糞便與液體糞水相分離的方法在一定程度上減少了對環(huán)境的影響，但液體糞水仍是污染環(huán)境的主要來(lái)源。
