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A platform for research: civil engineering, architecture and urbanism
Method for treating household garbage leachate by utilizing household garbage incineration fly ash
The invention discloses a method for treating household garbage leachate by using household garbage incineration fly ash. The method comprises the steps: adding a hydrochloric acid aqueous solution into the household garbage leachate; respectively weighing water and the household garbage incineration fly ash, mixing, stirring and centrifuging for solid-liquid separation to obtain household garbageincineration fly ash water washing liquid and fly ash solid slurry; carrying out electric treatment on the household garbage incineration fly ash water washing liquid, capturing gas generated by an electric anode chamber, directly introducing the gas into the acidified household garbage leachate, and aerating the household garbage leachate; scraping and filtering the household garbage leachate toobtain oily nitrogen trichloride and denitrified leachate; weighing an iron-aluminum agent and the fly ash solid slurry, and carrying out vacuum drying to obtain fly ash purified powder; and weighingthe denitrification leachate and the fly ash purification powder, mixing, stirring, and carrying out solid-liquid separation to obtain the household garbage leachate purification liquid and gelatinized fly ash solid slurry. 86% of nitrogen trichloride can be recycled at most, and 98% of ammonia nitrogen, 97% of COD, 98% of total phosphorus and 98% of mercury in the landfill leachate can be removed.
本发明公开利用生活垃圾焚烧飞灰处置生活垃圾渗滤液的方法，向生活垃圾渗滤液中加入盐酸水溶液；分别称取水和生活垃圾焚烧飞灰，混合搅拌离心进行固液分离，得到生活垃圾焚烧飞灰水洗液和飞灰固态浆；对生活垃圾焚烧飞灰水洗液进行电动处置，捕集电动阳极室生成的气体并直接通入到酸化的生活垃圾渗滤液中，同时对生活垃圾渗滤液曝气；将生活垃圾渗滤液进行刮滤，得到油状三氯化氮和脱氮渗滤液；称取铁铝剂和飞灰固态浆，真空干燥，得飞灰净化粉；称取脱氮渗滤液和飞灰净化粉，混合搅拌固液分离得到生活垃圾渗滤液净化液和胶凝飞灰固态浆。本发明最高可回收86%三氯化氮并实现去除垃圾渗滤液中98%氨氮、97%COD、98%总磷、98%汞。
Method for treating household garbage leachate by utilizing household garbage incineration fly ash
The invention discloses a method for treating household garbage leachate by using household garbage incineration fly ash. The method comprises the steps: adding a hydrochloric acid aqueous solution into the household garbage leachate; respectively weighing water and the household garbage incineration fly ash, mixing, stirring and centrifuging for solid-liquid separation to obtain household garbageincineration fly ash water washing liquid and fly ash solid slurry; carrying out electric treatment on the household garbage incineration fly ash water washing liquid, capturing gas generated by an electric anode chamber, directly introducing the gas into the acidified household garbage leachate, and aerating the household garbage leachate; scraping and filtering the household garbage leachate toobtain oily nitrogen trichloride and denitrified leachate; weighing an iron-aluminum agent and the fly ash solid slurry, and carrying out vacuum drying to obtain fly ash purified powder; and weighingthe denitrification leachate and the fly ash purification powder, mixing, stirring, and carrying out solid-liquid separation to obtain the household garbage leachate purification liquid and gelatinized fly ash solid slurry. 86% of nitrogen trichloride can be recycled at most, and 98% of ammonia nitrogen, 97% of COD, 98% of total phosphorus and 98% of mercury in the landfill leachate can be removed.
本发明公开利用生活垃圾焚烧飞灰处置生活垃圾渗滤液的方法，向生活垃圾渗滤液中加入盐酸水溶液；分别称取水和生活垃圾焚烧飞灰，混合搅拌离心进行固液分离，得到生活垃圾焚烧飞灰水洗液和飞灰固态浆；对生活垃圾焚烧飞灰水洗液进行电动处置，捕集电动阳极室生成的气体并直接通入到酸化的生活垃圾渗滤液中，同时对生活垃圾渗滤液曝气；将生活垃圾渗滤液进行刮滤，得到油状三氯化氮和脱氮渗滤液；称取铁铝剂和飞灰固态浆，真空干燥，得飞灰净化粉；称取脱氮渗滤液和飞灰净化粉，混合搅拌固液分离得到生活垃圾渗滤液净化液和胶凝飞灰固态浆。本发明最高可回收86%三氯化氮并实现去除垃圾渗滤液中98%氨氮、97%COD、98%总磷、98%汞。
Method for treating household garbage leachate by utilizing household garbage incineration fly ash
一种利用生活垃圾焚烧飞灰处置生活垃圾渗滤液的方法
HUANG TAO (author) / CANG YING (author) / WU MEIRONG (author) / HUANG RUI (author) / SONG DONGPING (author) / JIN JUNXUN (author) / LIU LONGFEI (author) / ZHANG SHUWEN (author) / ZHOU LULU (author)
2020-10-23
Patent
Electronic Resource
Chinese
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