Welcome to the company ! we have many years of professional experience !
rsdgj@pyzyrsd.com +86 513525609655

How to adjust pH when industrial wastewater is acidic

Established in 2001, Puyang Zhong Yuan Restar Petroleum Equipment Co.,Ltd, “RSD” for short, is Henan’s high-tech enterprise with intellectual property advantages and independent legal person qualification. With registered capital of RMB 50 million, the Company has two subsidiaries-Henan Restar Separation Equipment Technology Co., Ltd We are mainly specialized in R&D, production and service of various intelligent separation and control systems in oil&gas drilling,engineering environmental protection and mining industries.We always take the lead in Chinese market shares of drilling fluid shale shaker for many years. Our products have been exported more than 20 countries and always extensively praised by customers. We are Class I network supplier of Sinopec,CNPC and CNOOC and registered supplier of ONGC, OIL India,KOC. High quality and international standard products make us gain many Large-scale drilling fluids recycling systems for Saudi Aramco and Gazprom projects.

Certificate of Honor

Get in touch with us

We will confidentially process your data and will not pass it on to a third party.

How to adjust pH when industrial wastewater is acidic
Pollution Prevention Technology Profile Trivalent Chromium ...
Pollution Prevention Technology Profile Trivalent Chromium ...

hexavalent ,chromium, to ,trivalent chromium, using sulfur dioxide or sodium bisulfite. Finally, the solution is neutralized to precipitate the ,chromium, as ,chromium, hydroxide. Typical discharge concentrations for hexavalent and/or total ,chromium, in ,wastewater, are 0.1 to 1.0 ppm.

Chromium - DuPont
Chromium - DuPont

While trivalent chromium (Cr3+) is not considered to be harmful, hexavalent chromium (Cr6+) is toxic. If the chromium ion to remove from the wastewater stream is in the +3 oxidation state, then it typically behaves as a cation, so a cation exchange resin such as AmberSep™ G26 H Resin is recommended.

ORPTION COMPARISON OF TRIVALENT CHROMIUM ON …
ORPTION COMPARISON OF TRIVALENT CHROMIUM ON …

charcoal without impregnation, impregnated with potassium hydroxide, zinc chloride, and phosphoric ,acid, was 98.9%, 98.8%, 8.9% and 2.5%, respectively. The study could be helpful to design the sorption of ,trivalent chromium, from the tannery ,wastewater, in-house prior to discharge. Keywords: Sorption, Cr (III) extraction, Impregnation, Environment

Chromium Removal from Wastewater by Reverse Osmosis
Chromium Removal from Wastewater by Reverse Osmosis

study describes the removal of ,chromium, from ,wastewater, using pressure-driven membrane separation processes. It describes the rejection of ,trivalent chromium, using a commercial membrane for reverse osmosis typed RO98pHt (Alfa Laval, Sweden). Model solutions of ,chromium, were used for performing of separation experiments.

Chat Online Inquiry Email

Business cooperation

+86 513525609655

Company address

Road West, North Branch, Jingkai Road, Puyang City