Evaluation of granular anaerobic ammonium oxidation process for the disposal of pre-treated swine manure.
Evaluation of granular anaerobic ammonium oxidation process for the disposal of pre-treated swine manure.
复制标题
颗粒厌氧氨氧化工艺处理预处理猪粪的评价
作者：
Ni SQ;Yang N
随着人们对饮用水安全和富营养化的环境担忧日益加剧，媒体的关注日益增加，环境法规更加严格，以对环境负责和经济可行的方式管理动物排泄物可能是一个挑战。本研究探讨了颗粒厌氧氨氧化工艺去除养猪场废水中氨氮的可行性。在与活性污泥除臭反应器和厌氧消化-部分氧化处理工艺处理猪粪及其相应的对照人工废水的废水孵化过程中，NO2、−-N和NH4+-N迅速下降。当进水有机负荷从232mgCOD/L增加到1160mgCOD/L和2320mgCOD/L时，氨氮的去除从98.0±0.6%下降到66.9±2.7%，几乎为零。有机碳的存在对亚硝酸盐和总氮的去除效果有限。在COD/N为0.9时，COD抑制有机负荷阈值浓度为727mgCOD/L。质量平衡表明，反硝化菌对亚硝酸盐、硝酸盐和有机碳的去除起着重要作用。这些结果表明，厌氧氨氧化系统具有有效处理猪粪的潜力，可以在降低成本的情况下达到高氮素标准。
With rising environmental concerns on potable water safety and eutrophication, increased media attention and tighter environmental regulations, managing animal waste in an environmentally responsible and economically feasible way can be a challenge. In this study, the possibility of using granular anammox process for ammonia removal from swine waste treatment water was investigated. A rapid decrease of NO2−–N and NH4+–N was observed during incubation with wastewater from an activated sludge deodorization reactor and anaerobic digestion-partial oxidation treatment process treating swine manure and its corresponding control artificial wastewaters. Ammonium removal dropped from 98.0 ± 0.6% to 66.9 ± 2.7% and nearly absent when the organic load in the feeding increased from 232 mg COD/L to 1160 mg COD/L and 2320 mg COD/L. The presence of organic carbon had limited effect on nitrite and total nitrogen removal. At a COD to N ratio of 0.9, COD inhibitory organic load threshold concentration was 727 mg COD/L. Mass balance indicated that denitrifiers played an important role in nitrite, nitrate and organic carbon removal. These results demonstrated that anammox system had the potential to effectively treat swine manure that can achieve high nitrogen standards at reduced costs.
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影响因子：
11.4
作者：
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影响因子：
2.7
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影响因子：
2.7
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2.7
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通讯作者：
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3.4
作者：
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通讯作者：
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