宁建凤1,陈家欢2,李盟军1,王荣辉1,姚建武1,王思源1,艾绍英1.规模化猪场新建厌氧发酵系统对
废水氮、磷养分的处理效应[J].广东农业科学,2015,42(23):5-11 |
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规模化猪场新建厌氧发酵系统对
废水氮、磷养分的处理效应 |
Effects of newly anaerobic fermentation system onreducing nitrogen and phosphorus contentin sewage of large-scaled pig farms |
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DOI: |
中文关键词: 厌氧发酵 总氮 氨氮 总磷 猪场 |
英文关键词: a n a e r o b i c f e r m e n t a t i o n t o t a l
nitrogen ammonium nitrogen total phosphorus pig farm |
基金项目:全球环境基金东亚家畜废物管理项
目( T F 0 5 6 5 1 9 - C H A );广东省低碳发展专项资金
(2011-046);广东省科技计划项目(2011B020309003) |
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中文摘要: |
选择广东省10 个规模化猪场,开展猪场新建厌氧发酵系统对污水氮磷养分的处理效应研究。
结果显示,厌氧发酵系统对猪舍污水硝态氮、亚硝态氮的净化效果较好,减排率分别为19.89%~59.02% 和
18.75%~83.97%(2# 点除外),部分猪场厌氧发酵系统对总氮、氨氮和总磷的去除效果较差,分别为-49.18%~
43.14%、-83.72%~21.07% 和-13.89%~52.82%。沼气池排水经鱼塘和氧化塘净化后排出猪场,猪场排水硝态氮
和亚硝态氮浓度较沼气池排水明显升高,而氨氮、总氮和总磷浓度均较沼气池排水大幅降低。所有猪场排水中
总磷均超出畜禽养殖业污染物排放标准,具有一定的环境污染风险。 |
英文摘要: |
In order to evaluate the operation of anaerobic fermentation system,ten large-scaled pig farms were
selected in Guangdong province to monitor the contents of nitrogen and phosphorus in sewage discharged from the
hoggery and methane tank. The results showed that anaerobic fermentation system effectively decreased the content of
nitrate nitrogen and nitrite nitrogen of hoggery sewage,and the reduction rates of 19.89%-59.02% and 18.75%-83.97%
(2# excluded)were observed for nitrate nitrogen and nitrite nitrogen,respectively. The anaerobic fermentation system
in several pig farms did not performed well in total nitrogen,ammonium nitrogen and total phosphorus as evidenced by
the increase of these index in sewage of methane tank. The reduction rates of total nitrogen,ammonium nitrogen and total
phosphorus were -49.18%-43.14%,-83.72%-21.07% and -13.89%-52.82%,respectively. Sewage discharged from
the methane tank received further treatment by the fish pond and oxidation pond and then discharged out of the pig farm.
The concentration of NO2
--N and NO3
--N in effluent of pig farm increased significantly,compared to that in effluent of
methane tank,whereas the concentration of TN,NH3-N
and TP in effluent of pig farm decreased sharply in
contrast with the effluent of methane tank. However,the
TP content in effluent of ten farms all exceeded the value
of the discharge standard of pollutants for livestock and
poultry breeding,which would pose a pollution potential
to surrounding environment. |
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