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Graduation project of acid wastewater filtration and neutralization

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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Graduation project of acid wastewater filtration and neutralization
Remediation of heavy metals in drinking water and ...
Remediation of heavy metals in drinking water and ...

practiced as a prime method of treatment in industrial waters for many years. Chemical treatment of contaminated groundwater to remediate heavy metals has been performed in column and pilot scale experiments. In one such study, granulated lime and calcium carbonate were used as coagulants (Lee et …

Can Microbially Induced Calcite Precipitation (MICP ...
Can Microbially Induced Calcite Precipitation (MICP ...

They observed that the removal of ,calcium, with chemical precipitation (,adding carbonate,) was a 34–54%, but this value was increased to 98% when MICP bacteria were used. Another factor is the pH, which determines the ,acid,-based chemical equilibria, and thus defines the presence of ,carbonate, and the precipitation processes.

Amino Trimethylene Phosphonic Acid Uses in Water Treatment ...
Amino Trimethylene Phosphonic Acid Uses in Water Treatment ...

The purpose of adding acid is to adjust the equilibrium concentration of carbonate compounds by adjusting the pH value of water. And then adjust the equilibrium concentration of calcium carbonate to prevent the formation of calcium carbonate.

Remediation of heavy metal contaminated groundwater ...
Remediation of heavy metal contaminated groundwater ...

In this research, a chemical ,treatment, using lime and ,calcium carbonate, was investigated in terms of its capacity to remove heavy metals and arsenic from contaminated groundwater orig-inating from an abandoned mine. Lime and ,calcium carbonate, as coagulants are …

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