2019年广州市城镇污水污泥处理处置现状分析

Analysis of Sewage Sludge Treatment and Disposal in Guangzhou in 2019

2019年广州市污水处理厂污泥产生总量为1052092.725 t(按含水率80%计),全部都已处置。广州市中心城区的市政污泥泥质含水率较低,有机物含量一般。中心城区十座污水处理厂污泥中重金属含量均没有超标。污泥处理采用机械脱水+热干化,污泥的含水率可达到40%。中心城区、黄埔区、番禺区及从化区的污水污泥大部分用于建材利用,制水泥或制砖。增城区和花都区污泥用于堆肥绿化维护的较多。

In 2019,the total amount of sludge produced by the Guangzhou sewage treatment plant was 1052092.725 tons(calculated at a moisture content of 80%),all of which have been disposed of Municipal sludge in downtown Guangzhou has low water content and organic content general.The heavy metal content in the sludge of the ten sewage treatment plants in the central city did not exceed the standard.The sludge treatment adopts mechanical dehydration+thermal drying,and the moisture content of the sludge can reach 40%.Most of the sewage sludge in the central city,Huangpu District,Panyu District and Conghua District is used for building materials,making cement or making bricks.The sludge in Zengcheng and Huadu districts is Mostly used for composting and greening maintenance.