<mark id="xizsv"><ins id="xizsv"></ins></mark>

    服務熱線:深圳:0755-25857507 湖南:0731-55880108

    新聞中心

    聯系我們

    深圳粵鵬環保技術股份有限公司
    電話:0755-25857566
    郵箱:sales@yphb.com.cn
    地址:深圳市羅湖區寶安南路深港豪苑名商閣 20C/D/E
    湖南景翌湘臺環保高新技術開發有限公司
    電話:0731-55880108
    郵箱:sales@yphb.com.cn
    地址:湘潭市九華經濟技術開發區東風路8號
    新聞中心
    當前位置: 首頁> 新聞中心
    Wastewater treatment technology is introduced
    專欄:Environmental protection
    發布日期:2019-03-29
    閱讀量:1817
    作者:佚名

    A PCB wastewater treatment technology

    Printed circuit board wastewater treatment and reuse technology


    PCB production wastewater composition is complicated, and the concentration difference is big, mainly contain Cu2 + and Ni2 + in waste water, COD, acid, alkali, such as EDTA complexometric ion pollution components. Waste water containing these ingredients if not treated directly discharged into water bodies, will bring a series of harm to the environment.

    The company according to the characteristics of the circuit board wastewater, after a lot of research, experiment analysis and engineering practice to develop the leading domestic wastewater treatment process. According to the circuit board preparation, accurately classified collection of waste water and adopts the corresponding processing process respectively.


    The process flow

    1552977451695083111. The PNG


    The process system can guarantee the stability of treated effluent discharging standard, basic meet the requirements of the water. System process flow, layout reasonable, beautiful appearance, the application of automatic control, convenient operation, reliable operation.




    Second, the printed circuit board etching liquid recycling technology


    Printed circuit board etching liquid recycling technology




    Circuit board in the production process, screen printing, after enhancement, to take off the film, there are about 70 - more than 90% of the copper film is removed corrosion and corrosion of copper film after large amounts of waste water containing copper, the amount of alkaline etching solution containing copper is about 50-150 - g/L, the acid etching liquid copper content is about 30-100 - g/L. The two thick copper liquid such as directly into mixed in the waste water processing, processing load and processing both increase the difficulty, and increasing investment cause waste of resources.


    A high concentration of copper waste liquid is a good raw material, manufacturing copper sulfate and raw material purity, less impurities. The company after years of research, developed a set of economical and practical etching liquid crystalline recovery technology.



    The process flow


    1552977492742001308. The PNG


    This process by crystallization and purification, can be made in accordance with national standard GB 473-80 level of copper sulphate (per ton wastewater to produce CuSO4.5 H2O 300-500 kg)





    Three, electroplating wastewater reuse technology


    Electroplating wastewater reuse technology




    Electroplating wastewater including electroplating rinse water, passivation wastewater, plating pieces pickling waste water and waste water, rinsed in floor and plate water complex, the composition is not easy to control, mainly contain chromium, cadmium, nickel, copper, zinc, gold, silver and other heavy metal ions, cyanide, acid and alkali, etc. The company after years of experiments and engineering practice, developed a cost-effective electroplating wastewater treatment technology. This process will be divided into cyanide electroplating wastewater is a comprehensive chromium waste water, waste water and waste water, considering the characteristics of the various kinds of wastewater and the reaction conditions of various metal ions, find out the best combining site. For waste water containing cyanide, chrome mainly USES the principle of chemical oxidation reduction after processing, and comprehensive wastewater for chemical neutralization precipitation treatment again.




    The process flow


    1552977492954071778. The PNG






    Four, printing and dyeing wastewater


    上一頁:找不到相關信息
    下一頁:Technology | incinerators advanced treatment of landfill leachate
    a级毛片免费完整视频