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Treatment of acidic wastewater containing fluorine and phosphorus with calcium aluminate

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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Treatment of acidic wastewater containing fluorine and phosphorus with calcium aluminate
Chromium removal from industrial wastewater using ...
Chromium removal from industrial wastewater using ...

22/8/2018, · In order to study the possibility of repeated use of Cu-S·PPP-SH, the efficiency of ,chromium, removal was also tested using hexavalent ,chromium,-electroplating ,wastewater, and trivalent ,chromium,-tanning ,wastewater,. 0.5 g Cu-S·PPP-SH was added to a conical flask ,containing, 100mL of electroplating ,wastewater, or tanning ,wastewater, sample and shaken at 25°C for 90 min. Adjust the …

An overview of chromium removal techniques from tannery ...
An overview of chromium removal techniques from tannery ...

9/8/2020, · They recovered almost 30% Cr using concentrated sulphuric ,acid, (H ,2 SO, 4) at about pH ,2,.8, and this Cr could be mixed with 70% fresh basic ,chromium, sufate (Minas et al. 2017). Abbas et al. investigated four precipitating agents such as NaOH, [Ca(OH) ,2,], MgO and Al ,2, (,SO, 4) 3 ·18H ,2, O for the reduction of Cr from

Removal of Chromium from Industrial Wastewater by ...
Removal of Chromium from Industrial Wastewater by ...

Removal ,of Chromium from Industrial Wastewater by Adsorption Using, Coffee Husk Dessalew Berihun* ... ,containing, concentration of 1000 mg/l was prepared by dissolving ,2,.829 g of potassium dichromate, K ,2, Cr ,2, O 7 analytical grade, in 1000 ml of deionized water. The stock solution was ... ,2 SO, 4 was added drop wise ...

Wastewater Treatment during PCB Fabrication Process | PSPCB
Wastewater Treatment during PCB Fabrication Process | PSPCB

This process produces copper-,containing wastewater,, sulfuric ,acid, mist. (10) Soldermask ... ,so, that the ,wastewater, can reach the discharge standard, ... and the cyanide-,containing wastewater, and the ,chromium,-,containing wastewater, in the circuit board are often subjected to a redox method. ,2,.

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