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Environmental impact assessment of fracturing flowback fluid

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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Environmental impact assessment of fracturing flowback fluid
COD Removal of Edible Oil Content in Wastewater by ...
COD Removal of Edible Oil Content in Wastewater by ...

Photo-Fenton process gave a maximum ,COD reduction, of 80.59 % (,COD, from 2684 to 521 mg/l), Fenton gave 53.22 % ... resulting in both high inorganic as well as ,organic, loading of the relevant ,wastewater, treatment works. ... and hydrogen peroxide in ,acidic, aqueous solution, ...

Cytotoxicity reduction of wastewater treated by advanced ...
Cytotoxicity reduction of wastewater treated by advanced ...

degradation was observed to be 72% and ,reduction, in ,COD,, BOD, TOC were 58%, 57%, 48%, and increase in DO level was up to 49% respectively. For the evaluation of the toxicity of photocatalyticaly treated ,wastewater,, Allium cepa and brine shrimp test were also carried out before and after treatment of printing ,wastewater,.

Aerobic mesophilic treatment of potato industry wastewater
Aerobic mesophilic treatment of potato industry wastewater

hence resulting in ,acidic wastewater,. However, it had very low protein content. At s ,Organic, content removal during batch treatment 84% as recorded by Cibis Figure 2 shows the treatment efficiency of a CSTR under batch conditions as a function of the effluent’s pH and ,COD reduction,…

What is Chemical Oxygen Demand (COD) Analysis? - Mantech
What is Chemical Oxygen Demand (COD) Analysis? - Mantech

The traditional ,chemical oxygen demand, (,COD,) analysis method is the wet chemistry method. This involves a two hour digestion at high heat under ,acidic, conditions in which potassium dichromate acts as the oxidant for any ,organic, material present in a water sample.

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