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acid fracturing waste water harmless disposal hazardous waste

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 fracturing waste water harmless disposal hazardous waste
An Integrated Treatment Technology for Blended Wastewater ...
An Integrated Treatment Technology for Blended Wastewater ...

22/3/2019, · The last experiment was carried out at the optimum condition of the anaerobic ,treatment, of the blended ,wastewater, (initial COD concentration of 10,000 g/L, HRT of 10 days, pH 7 of the blended ,wastewater, and at a constant temperature of 37°C in the bioreactor) and followed by adsorption of activated BFA at the optimum condition (4 g BFA in 100 mL, and contact time of 4 h).

Treatment of Industrial Effluents - Environmental Pollution
Treatment of Industrial Effluents - Environmental Pollution

A ,two,-,stage treatment, process using chalk (CaCO 3) and lime (CaO) is used. In the first ,stage,, the acidic ,waste water, is neutralized with chalk to pH 3.5 – 4.0 allowing a reaction time of 30 minutes with adequate agitation. More than 85% of fluoride can be precipitated as calcium fluoride, with marginal phosphate removal.

Two-Stage Batch Adsorber Optimisation for Malachite Green ...
Two-Stage Batch Adsorber Optimisation for Malachite Green ...

The batch of NDS was treated with 30% concentration o-phosphoric ,acid,, H 3 PO 4, using an impregnation ratio of 2:1, as an activating agent. The resulted matter was heated in a muffle furnace in the same manner of the second group. To neutralize any remaining ,acid,, the charred matter was cooled and washed with dilute ammonia solution. To ensure

Reclamation of acid dye bath wastewater: Effect of pH on ...
Reclamation of acid dye bath wastewater: Effect of pH on ...

15/9/2006, · The inadequate rejection of pollutants lead to the implementation of sequential NF consisting of three stages, where COD rejection increased from 55%–77% to 94% at the end of the third ,stage,. Finally, the ,wastewater, pH was neutralized by adjusting to 7.0, which provided COD rejection efficiency as high as 97% in single NF.

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