关键词: 渣土废泥浆;有机絮凝剂;无机絮凝剂;含水率;絮凝效果

Abstract: At present , the mud disposal from subway pollutes the environment seriously and has negative effect on construction .The mud disposal will be regarded as the research object in this test .The flocculation effects of organic-inorganic composite flocculant on the mud disposal are researched .The results show that:(1) When the water content is 99%, the optimal dosage of PAC and APAM is 0.02%and 2.0 ×10 -4%, the optimal dosage of PAC and CPAM is 0.02% and 5.0 ×10 -4%;(2) When the water content is 98%, the optimal dosage of PAC and APAM is 0.06%and 7.0 ×10 -4%, the optimal dosage of PAC and CPAM is 0.06%and 9.0 ×10 -4%;(3)When the water content is 97%, the optimal dosage of PAC and APAM is 0.12%and 7.0 ×10 -4%, the optimal dosage of PAC and CPAM is 0.12%and 1 .4 ×10 -3%.

Key words: waste residue in the mud;organic flocculant;inorganic flocculant;moisture content;flocculation effect