午夜无码十八禁在线观看_黄色软件抖阴_高清露脸对白啪啪_国产午夜亚洲精品不卡网站_伊人中文字幕无码久久综合_女18一级大黄毛片免费女人_国产亚洲香蕉视频中文字一区二区_綜合精品自拍亂倫_国产超薄肉丝袜视频在线观看_男人的天堂亚洲无码

Nanping sanjin electronics co. LTD

Column:Sewage disposal Time:2019-07-24
shared:

image.png

Project introduction: L sanjin electronics co., LTD., production process using nickel plating process, produces the wastewater containing nickel, nickel ion is the first in the national wastewater discharge standard random discharge of pollutants is forbidden, because it can in the environment and animal and plant body enrichment, through the food chain cause long-term adverse effects on human health, so the waste water containing such substances, divisions and discharge way, also regardless of the function of receiving waters and categories, the maximum allowable emission concentration Ni2 + < 1.0 mg/L.