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oil gas field fracturing flow-back fluids treatment techniques using

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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oil gas field fracturing flow-back fluids treatment techniques using
lime dosing in wastewater treatment
lime dosing in wastewater treatment

As mentioned above ,lime, consumption is dependent on the alkalinity of the ,wastewater,: only 10% of the ,lime, fed is used in the phosphorous removal ,reaction,. The functions of ,lime, in water treatment. Depending on the sludge buffering capacity, between 20 and 40% CaO per unit of dry solids (DS) - or equivalent quantity of Ca(OH)2 or liquid ,lime, - is capable of producing a treated sludge.

Investigation of an integrated treatment technique for ...
Investigation of an integrated treatment technique for ...

1/2/2019, · The latter chemical reagent gave a much faster ,reaction, rate (80 min to reach equilibrium, Fig. 2b) compared to the commercial types of solid ,lime, (Fig. 2a), most possibly due to its higher purity; however, and once again, ,hydrated lime, in a slurry form gave a rapid increase of pH (20 min to reach equilibrium, Fig. 2b).

Coagulation and Flocculation in Water and Wastewater ...
Coagulation and Flocculation in Water and Wastewater ...

The total ,reaction, time from the point of ferric chloride addition to entering the primary clarifiers was approximately 8 minutes at peak flow. Factors affecting coagulation operations Temperature. Temperature significantly affects coagulation operations, particularly for low turbidity waters, by shifting the optimum pH.

Neutralization of Wastewater in the Chemical Industry ...
Neutralization of Wastewater in the Chemical Industry ...

The chemical formulas for lime and hydrated lime are CaO and Ca (OH) 2 respectively. For instance, when iron pyrites are oxidized in the presence of bacteria, the following reaction takes place leading to the production of sulfuric acid, which later forms the acidic mine water with other substances such as sludge (Kalin et al., 2006).

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