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Fracturing fluid flowback level

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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Fracturing fluid flowback level
Transfer behavior of odorous pollutants in wastewater ...
Transfer behavior of odorous pollutants in wastewater ...

Chemical conditioning has been used for enhancing ,wastewater, sludge dewaterability for many ... humic ,acid, and nucleic ,acid,, ... Then Fe 2 S 3 transformed ,into, FeS. With addition of lime (,CaO,), ...

A review of the applications of ion floatation: wastewater ...
A review of the applications of ion floatation: wastewater ...

Moreover, by ,adding, auxiliary ligands (malic ,acid, and maleic ,acid,), the recovery efficiencies for all metal ions increased and the flotation times decreased to 40, 20 and 40 min for Zn(ii), Mn(ii) and Cu(ii), respectively, when the molar ratio of metal : sodium dodecyl sulphate : auxiliary ligand was 1 : 5 : 5. 40 It is evident that ion flotation has a high removal capacity for various metal ...

Frontiers | Enhancing the Energy Efficiency of Wastewater ...
Frontiers | Enhancing the Energy Efficiency of Wastewater ...

The energy content of ,wastewater, is includes the heat and the organic constituents found in the inlet ,wastewater, (Tchobanoglous et al., 2009). The chemical energy content of ,wastewater, is around 13 MJ/kg COD, while heat energy is 41.9 MJ/10°C m 3 and is usually 2–4 times higher than the plant energy request, data confirmed also by WERF (2014b).

Frontiers | A Review of Phosphorus Removal Technologies ...
Frontiers | A Review of Phosphorus Removal Technologies ...

The removal of phosphorus (P) from ,domestic wastewater, is primarily to reduce the potential for eutrophication in receiving waters, and is mandated and common in many countries. However, most P-removal technologies have been developed for use at larger ,wastewater, treatment plants that have economies-of-scale, rigorous monitoring, and in-house operating expertise.

Brief Analysis of the Main Treatment Methods of Phosphoric ...
Brief Analysis of the Main Treatment Methods of Phosphoric ...

The larger the equilibrium constant is, the more stable the precipitate is, the better the precipitation effect is, the more thorough the dephosphorization is, the better the solid-liquid separation effect is, and the treatment of phosphorus-containing ,wastewater, is up to the standard, P < 0.5mg/L. ,Adding, lime can improve the pH value of ,wastewater, and remove phosphorus, at the same time, the ...

Removal of Heavy Metal Ions from Water and Wastewaters by ...
Removal of Heavy Metal Ions from Water and Wastewaters by ...

28/9/2020, · Restrictive requirements for maximum concentrations of metals introduced ,into, the environment lead to search for effective methods of their removal. Chemical precipitation using hydroxides or sulfides is one of the most commonly used methods for removing metals from water and ,wastewater,. The process is simple and inexpensive. However, during metal hydroxide precipitation, …

Dual Electrodes Oxidation of Dye Wastewater with Gas ...
Dual Electrodes Oxidation of Dye Wastewater with Gas ...

The high energy cost of an electrochemical method is the fatal drawback that hinders its large scale application in ,wastewater, treatment. In traditional single-chamber electrolysis cell, only direct oxidation at an anode exists. Although a small amount of hydrogen peroxide is produced at the cathode by reduction, it is transferred to the anode and destroyed there without ,adding, much benefit to ...

Technologies for Recovering Nutrients from Wastewater: A ...
Technologies for Recovering Nutrients from Wastewater: A ...

9/5/2019, · Conventional ,wastewater, treatment plants generally remove nutrients from ,wastewater, as phosphate-rich sludge and convert nitrogen-containing compounds ,into, nitrogen gas by nitrification–denitrification, to control eutrophication (De-Bashan and Bashan, 2004).

Lime Use in Wastewater Treatment: Design and Cost Data
Lime Use in Wastewater Treatment: Design and Cost Data

----- EPA-600/2-75-038 October 1975 LIME ,USE IN WASTEWATER TREATMENT: DESIGN AND COST, DATA by Denny S. Parker, Emilio de la Fuente, Louis O. Britt, Max L. Spealman, Richard J. Stenquist, and Fred J. Zadick Brown and Caldwell Walnut Creek, California 94596 Contract No. 68-03-0334 Project Officer James E. Smith, Jr. ,Wastewater, Research Division Municipal Environmental Research …

Wastewater produces electricity and desalinates water
Wastewater produces electricity and desalinates water

"However, it took 200 milliliters of an artificial ,wastewater, -- acetic ,acid, in water -- to desalinate 3 milliliters of salty water.

Brief Analysis of the Main Treatment Methods of Phosphoric ...
Brief Analysis of the Main Treatment Methods of Phosphoric ...

The larger the equilibrium constant is, the more stable the precipitate is, the better the precipitation effect is, the more thorough the dephosphorization is, the better the solid-liquid separation effect is, and the treatment of phosphorus-containing ,wastewater, is up to the standard, P < 0.5mg/L. ,Adding, lime can improve the pH value of ,wastewater, and remove phosphorus, at the same time, the ...

Method for removing metals from acid mine drainage ...
Method for removing metals from acid mine drainage ...

The step of ,adding, the lignin derivatives in the ,wastewater, can be carried out either before or after the step of ,adding, the alkali coagulant. An alkaline composition, such as caustic soda, soda ash, or additional lime, is then dispersed in this mixture to increase the pH, preferably to a pH in the range of 9-10 and more preferably 9.3-9.6.

Technologies for Recovering Nutrients from Wastewater: A ...
Technologies for Recovering Nutrients from Wastewater: A ...

9/5/2019, · Conventional ,wastewater, treatment plants generally remove nutrients from ,wastewater, as phosphate-rich sludge and convert nitrogen-containing compounds ,into, nitrogen gas by nitrification–denitrification, to control eutrophication (De-Bashan and Bashan, 2004).

Using Sludge Fermentation Liquid To Improve Wastewater ...
Using Sludge Fermentation Liquid To Improve Wastewater ...

Wastewater, biological nutrient removal (BNR) by ,short-cut nitrification-denitrification, (SCND) ,and denitrifying phosphorus removal via nitrite, (DPRN) has several advantages, such as organic carbon source saving. In this paper, a new method, i.e., by using waste activated sludge alkaline fermentation liquid as BNR carbon source, for simultaneously improving SCND and DPRN was reported. First ...

Waste Material Adsorbents for Zinc Removal from Wastewater ...
Waste Material Adsorbents for Zinc Removal from Wastewater ...

This review examines a variety of ,adsorbents, and discusses mechanisms, modification methods, recovery and regeneration, and commercial applications. A summary of available researches has been composed by a wide range of potentially low-cost modified ,adsorbents, including activated carbon, natural source ,adsorbents, (clay, bentonite, zeolite, etc.), biosorbents (black gram husk, sugar-beet …

A review of the applications of ion floatation: wastewater ...
A review of the applications of ion floatation: wastewater ...

Moreover, by ,adding, auxiliary ligands (malic ,acid, and maleic ,acid,), the recovery efficiencies for all metal ions increased and the flotation times decreased to 40, 20 and 40 min for Zn(ii), Mn(ii) and Cu(ii), respectively, when the molar ratio of metal : sodium dodecyl sulphate : auxiliary ligand was 1 : 5 : 5. 40 It is evident that ion flotation has a high removal capacity for various metal ...

Removal of pharmaceuticals and personal care products ...
Removal of pharmaceuticals and personal care products ...

1/11/2016, · Briefly, PPCPs can enter the surface water via directly discharging ,into, the surface water by industries, hospitals, households and ,wastewater, treatment plants and through land runoff in case of biosolids spread on agricultural land, which can reach the groundwater by leaching or bank filtration.

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