Nutrient removal and sludge production in the coagulation-flocculation process
Nutrient removal and sludge production in the coagulation-flocculation process
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DOI：
10.1016/s0043-1354(01)00508-5
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发表时间：
2002-06-01
期刊：
影响因子：
12.8
通讯作者：
Ortuño, JF
中科院分区：
文献类型：
--
作者：
Aguilar, MI;Sáez, J;Ortuño, JF
研究了应用于屠宰场废水的混凝絮凝过程中的营养物去除和污泥产生。使用Fe-2(SO4)(3)、Al-2(SO4)(3)和聚合氯化铝作为混凝剂。无机产品用作助凝剂：活性二氧化硅、粉状活性炭和沉淀碳酸钙以及合成聚电解质：阳离子聚丙烯酰胺、聚丙烯酸、阴离子聚丙烯酰胺和聚乙烯醇。性能是在所用产品的最佳条件下测量的。他们是在研究影响该过程的不同变量后发现的。除磷率非常高（正磷酸盐去除率约为 100%，总磷去除率在 98.93% 至 99.90% 之间）。尽管观察到类蛋白氮具有明显的性能（73.9-88.77%），但氨氮去除率非常低。使用助凝剂可将产生的污泥体积减少达 41.6%。 (C) 2002 Elsevier Science Ltd. 保留所有权利。
Nutrient removal and sludge production in the coagulation-flocculation process, applied to a slaughterhouse effluent, have been studied. Fe-2(SO4)(3), Al-2(SO4)(3) and polyaluminium chloride were used as coagulants. Inorganic products were used as coagulant aids: activated silica, powdered activated carbon and precipitated calcium carbonate and synthetic polyelectrolytes: cationic polyacrylamide, polyacrilic acid, anionic polyacrylamide and polyvinyl alcohol. Performances were measured under optimum conditions for the products used. They were found after studying the different variables which influence the process. Phosphorus removal is very high (approximate to 100% for the orthophosphate and between 98.93% and 99.90% for the total phosphorus). Ammonia nitrogen removal is very low although appreciable performances are observed for albuminoid nitrogen (73.9-88.77%). The use of coagulant aids reduces the volume of the sludge produced up to 41.6%. (C) 2002 Elsevier Science Ltd. All rights reserved.