湖北第二师范学院学报
湖北第二師範學院學報
호북제이사범학원학보
JOURNAL OF HUBEI UNIVERSITY OF EDUCATION
2011年
8期
24-26
,共3页
三段%石灰—铁盐法%高砷%洗气污酸
三段%石灰—鐵鹽法%高砷%洗氣汙痠
삼단%석회—철염법%고신%세기오산
three-stage%lime-ferric salt process%high-arsenic%impure acid
砷化物的不可降解性决定了砷污染处理中化学法的不可替代性,针对高砷洗气污酸废水,在分析了几种主要处理方法特点的基础上,提出了三段石灰—铁盐法。以很低的处理费用确保高砷洗气污酸废水达标排放,同时得到三部分固体渣：高含量的砷钙渣、非危固石膏渣和极少量含砷铁盐渣。高含量的砷钙渣和非危固石膏渣可资源化利用,少量含砷铁盐渣送危险固体废物处理中心处理。
砷化物的不可降解性決定瞭砷汙染處理中化學法的不可替代性,針對高砷洗氣汙痠廢水,在分析瞭幾種主要處理方法特點的基礎上,提齣瞭三段石灰—鐵鹽法。以很低的處理費用確保高砷洗氣汙痠廢水達標排放,同時得到三部分固體渣：高含量的砷鈣渣、非危固石膏渣和極少量含砷鐵鹽渣。高含量的砷鈣渣和非危固石膏渣可資源化利用,少量含砷鐵鹽渣送危險固體廢物處理中心處理。
신화물적불가강해성결정료신오염처리중화학법적불가체대성,침대고신세기오산폐수,재분석료궤충주요처리방법특점적기출상,제출료삼단석회—철염법。이흔저적처리비용학보고신세기오산폐수체표배방,동시득도삼부분고체사：고함량적신개사、비위고석고사화겁소량함신철염사。고함량적신개사화비위고석고사가자원화이용,소량함신철염사송위험고체폐물처리중심처리。
The non-degradability of arsenates determines that chemical processing is a must for arsenate-contaminated wastes.When addressing the characteristics of some major processing methods,a three-stage lime-ferric salt method is proposed for high arsenic impure acid wastewater.Using this method,the wastewater can be discharged with industrial standards after treated with very low costs.Meanwhile,three solid residues can be obtained： high-content calcium arsenate residues,non-dangerous gypsun waste,and minute arsenic-ferric salts residues;the former two can be reutilized while the latter can be treated in some dangerous solid waste processing centers.
