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Acid wastewater from spandex production

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.

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Acid wastewater from spandex production
A New Process For Sulfate Removal From Industrial Waters
A New Process For Sulfate Removal From Industrial Waters

Wastewater, with an initial sulfate concentration below 8000 mg/L, or which has already been treated using gypsum precipitation, is adjusted to a pH of 10.5 ,with hydrated lime,. This removes metals as hydroxides and precipitates more gypsum, so approximately 2000 mg/L of sulfate remains in solution.

Smokestack scrubbers: How they work and why they are used ...
Smokestack scrubbers: How they work and why they are used ...

The sulfur compounds are recovered as gypsum (calcium sulfate), which has commercial applications, or even as sulfuric ,acid, in some processes. Dry scrubbers use injection of alkaline media such as ,hydrated lime, or soda ash (sodium carbonate) for the same purpose.

BR LOOKUP | Envirofacts | US EPA
BR LOOKUP | Envirofacts | US EPA

wastewater treatment, sludges from electroplating operations, except from the following processes: (1) sulfuric ,acid, anodizing of aluminum; (2) tin plating on carbon steel; (3) zinc plating (segregated basis) on carbon steel; (4) aluminum or zinc-aluminum plating on carbon steel; (5) cleaning/stripping associated with tin, zinc, and aluminum plating on carbon steel; and (6) chemical etching and ...

British Lime Association (BLA) part of the Mineral ...
British Lime Association (BLA) part of the Mineral ...

BLA Members continued operations during the 2020 COVID-19 lockdown, as ,lime, is an essential product for the provision of safe drinking water and ,treatment, of ,wastewater, and for several important manufacturing industries, including steel and plastics that are used to produce goods critical to combating COVID-19.

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Road West, North Branch, Jingkai Road, Puyang City