The evaluation is complied with national stipulation about comprehensive discharge standard of sewage.
评价选用国家制定的污水综合排放标准。
2
With tubular polysulfone ultrafiltration membrane separation unit treating the produced sewage on the spot, the treated sewage can meet the water injection standard in low permeability oil field.
用管式聚砜超滤膜分离装置现场处理采油污水，经过处理的污水达到了低渗透油田注水标准。
3
It is to adjust sewage blowdown cost to impose a standard.