等静压石墨生产过程中洗烟废水处理技术分析
叶开洋 1占婷婷1
作者信息
- 1. 苏州昌泽环保工程科技有限公司,江苏苏州 215000
- 折叠
摘要
石墨烯生产过程中,碱洗塔会产生大量高浓度洗烟废水,其中COD＞1 000 mg/L,TDS约14 000 mg/L,经过"混凝-气浮"+碟管式反渗透(DTRO)+机械式蒸汽再压缩(MVR)工艺进行处理后,一部分水可回用至生产车间,剩下的废水COD＜500 mg/L,TDS＜1 500 mg/L,达到当地产业园区接管指标要求,直接排入园区污水管网.
Abstract
In the production process of graphene,the alkali washing tower will generate a large amount of high concentration smoke washing wastewater,with COD greater than 1 000 mg/L and TDS about 14 000 mg/L.After being treated by the"coagulation-air flotation"+disc tube reverse osmosis(DTRO)+mechanical vapor recompression(MVR)process,a portion of the water can be reused for production water,and the remaining wastewater has COD less than 500 mg/L and TDS less than 1 500 mg/L,which meets the local industrial park takeover indicators and is directly discharged into the park sewage pipe network.
关键词
洗烟废水/混凝-气浮/DTRO/MVR/COD/TDSKey words
alkaline wastewater/coagulation-air flotation/disc tube reverse osmosis/mechanical vapor recompression/chemical oxygen demand/total dissolved solids引用本文复制引用
出版年
2024
NETL
NSTL
维普
万方数据