The results showed that the system could efficiently COD from the coking waste water. The COD removing rate was over 90% and the ammonia nitrogen removing rate was over 80%.
结果表明,系统能有效地去除焦化废水中的COD,去除率均大于90%,氨氮的去除率在80%以上。
As a result Iris pseudacorus has the biggest absorption contribution rate for removing nitrogen and phosphorus from the secondary effluent from April to October, which gets 30% and 73% respectively.
采用室内试验和现场试验考察了黄花鸢尾、水葱和梭鱼草3种挺水植物对类污水处理厂二级出水中氮、磷的吸收速率、吸收容量和吸收贡献。
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