Characteristics and application of waste residue from the synthetic rutile industry in the treatment of wastewater

武汉理工大学学报 Pub Date : 2010-12-01 DOI:10.3963/J.ISSN.1671-4431.2010.24.018

Zheng Yuan, G. Douglas, L. Wendling, Yinghe Jiang

引用次数: 1

Abstract

A series of experiments were conducted to characterise neutralized acid residue from the synthetic rutile industry. Column sorption experiments were conducted to investigate the attenuation of DOC and nutrients in wastewater using neutralized acid residue. After 145 days, DOC, TP, PO4-P, TN, NH3-N, NOx-N and DON in neutralized acid residue/sand column effluent were reduced by 88.9%, 94.9%, 99.1%, 63.5%, -107.3%, 71.2% and 77.7%. DOC, TP, PO4-P, TN, NH3-N, NOx-N and DON in sand column effluent were reduced by -0.3%, -50.1%, -44.8%, -10.8%, -298.2%, 86.3% and -28.5%. The calculated removal rate of DOC, TP, PO4-P, TN, NH3-N, NOx-N and DON by neutralized acid residue are 88.9%, 96.6%, 99.4%, 67.1%, 47.9%, -110.1% and 82.7%. Neutralized acid residue exhibits good sorption of DOC and nutrients. Neutralized acid residue may be of benefit in reducing water pollution

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合成金红石工业废渣的特性及其在废水处理中的应用

对合成金红石工业中和酸渣进行了一系列表征实验。采用柱吸附实验研究了中和酸渣对废水中DOC和营养物质的衰减作用。145 d后，中和后的酸渣/砂柱出水DOC、TP、PO4-P、TN、NH3-N、NOx-N和DON分别降低了88.9%、94.9%、99.1%、63.5%、-107.3%、71.2%和77.7%。砂柱出水DOC、TP、PO4-P、TN、NH3-N、NOx-N和DON分别降低了-0.3%、-50.1%、-44.8%、-10.8%、-298.2%、86.3%和-28.5%。中和酸渣对DOC、TP、PO4-P、TN、NH3-N、NOx-N和DON的去除率分别为88.9%、96.6%、99.4%、67.1%、47.9%、-110.1%和82.7%。中和后的酸渣对DOC和营养物质具有良好的吸附作用。中和后的酸渣可能有利于减少水污染

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