Abstract
Chromium-containing wastewater has great harm to environment, biology and human body, while chromium pollution is one of the important factors of environment pollution. Our organization which always attach importance to chromium-containing wastewater, collocate with professional processing flow, operating personnel and analyst responsible for monitoring treated wastewater. Several common methods for chromium-containing wastewater at present including:electrolytic reduction, chemical precipitation, ion exchange, photocatalysis method etc. Our organization has used successively ion exchange, ferrous sulfate reduction method in chromium-containing wastewater treatment. The advantage of ion exchange method contains better water quality after processing and the water and chromic acid can be reused,while the shortage are high investment and maintenance costs, complicated operation administration and resin oxidation problem. The main disadvantages of ferrous sulfate reduction method are large quantity of sludge and secondary pollution. Currently our organization take use of sodium pyrosulfite in chromium-containing wastewater treatment which has an easy operation procedure and get a stable and desirable effect, discharge water 100% up to the standard. The water after treatment has a better quality and less sludge and cost. The next tests show that considering these following points can get better effect.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
