YUE Li-fang,WANG Chun-hui,HAN Yi-jie,et al.Brine Treatment and Reuse Project of an Iron and Steel Enterprise[J].China Water & Wastewater,2020,36(22 22):156-159.
Brine Treatment and Reuse Project of an Iron and Steel Enterprise
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第36卷
Number:
22 22
Page:
156-159
Column:
Date of publication:
2020-11-17
- Keywords:
- brine; microfiltration; nanofiltration; reverse osmosis
- Abstract:
- The combined process of microfiltration, nanofiltration, and reverse osmosis was adopted in an iron and steel enterprise to treat the reverse osmosis brine produced in reclaimed water reuse engineering for supplementary water of circulating water system in coking plant. The actual operation results show that the brine treatment system operates well and the treatment process is reasonable, the water production rate of the project reach 78.8% and the direct operating cost is 4.62 yuan/m3. The reclaimed water quality meets criteria for process and product water quality in The Reuse of Urban Recycling Water—Water Quality Standard for Industrial Uses(GB/T 19923-2005) and the final ultra-concentrated water quality meet the specific water pollutant discharge limits in Discharge Standard of Water Pollutants for Iron and Steel Industry (GB 13456-2012). The final ultra-concentrated water is used for scouring slag or mixing into sintering ingredients to achieve the goal of brine zero discharge.
Last Update:
2020-11-17