改性燃煤炉渣在人工湿地综合作用成效  

Synthetic Actions of Modified Coal Slag in Constructed Wetland

作　　者：文科军[1,2] 张衍杰[1] 吴丽萍[1,2] 刘聪[1] 赵方方[1] 苟楚璇 

机构地区：[1]天津城建大学环境与市政学院 [2]天津水质科学与技术重点实验室,天津300384

出　　处：《水处理技术》2016年第1期105-109,共5页Technology of Water Treatment

基　　金：天津市科技计划项目(12ZCZDSF01900);天津科技支撑计划重点项目(08ZCGYSF02500);科技部中小企业技术创新基金(13C26211200349)

摘　　要：根据前期酸洗废液改性燃煤炉渣及重金属浸出的特性实验,通过L_9(3~4)正交实验的方法,探讨改性炉渣在人工湿地综合作用成效。结果表明,HCl的质量分数20%的废液+微波改性后炉渣BET增加了29 m^2/g,重金属浸出符合环境安全性评价。影响TN去除效果HRT>填料>微生物>种植数量,影响TP去除效果为填料>HRT>微生物>种植数量,各因素的影响均为极显著(P<0.01)。综合考虑湿地最优组装的填料为酸改性+微波改性炉渣、校园湖底泥微生物,水竹种植数量4、HRT为6 d。研究结果可为双废资源化利用途径提供中试依据。With the analysis of physical properties of coal slag and leaching characteristics of heavy metal content, L9（34） orthogonal test with coal slag was established as an artificial wetland substrate treatment in domestic sewage. The results showed that aider the modification of HCI＇s mass fraction 20% of the waste liquid and microwave modified slag, the BET increased by 29 m^2/g. The heavy metal content conformed to environmental standard evaluation. The order of factors affecting TN removal were as following： HRT〉padding〉microorganism〉planting density. The order for TP removal was padding〉 HRT〉microorganism〉planting density. The effects of these factors were significant （P〈0.01）. The optimal padding was acid and microwave modified slag, microorganism in button mud of campus lakes, planting density being 4, and HRT being 6 d. This research provided a new way for pilot test of industrial acid waste minimization and modified coal slag utilization.

关 键 词：酸洗废液 燃煤炉渣 改性 环境安全性 正交实验 

分 类 号：X703.1[环境科学与工程—环境工程]