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Treatment of amide 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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Treatment of amide fracturing flowback fluid
Oreščanin V et al. BOAT PRESSURE WASHING WASTEWATER ...
Oreščanin V et al. BOAT PRESSURE WASHING WASTEWATER ...

below national limits with 1 g of CaO, 2.54 mg of Fe3+ in the form of FeCl 3 ×6H 2 O, and the combination of 0.25 g of CaO and 5.08 mg of Fe 3+ per 50 mL of wastewater. Both CaO (1.50 g per 50 mL of wastewater) and FC proved effi cient, but their combination yielded a …

Treatment and reuse of coalmine wastewater in Vietnam ...
Treatment and reuse of coalmine wastewater in Vietnam ...

Coalmine wastewater has long been a concern due to its potentially severe adverse environmental impacts, such as soil and water pollution. The wastewaters from coalmines, which are commonly referred to as acid mine drainage (AMD), are formed by the chemical and biochemical reactions in the groundwater exposed to the ore and oxygen.

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).

Chemicals in Water & Wastewater Treatment
Chemicals in Water & Wastewater Treatment

Chemicals in Water & Wastewater Treatment, Chemical Used for Precipitation 1. Aluminum sulfate – Al 2 (SO 4) 3.18 H 2 O 2. Aluminum chloride – AlCl 3 3. Calcium hydroxide – Ca (OH) 2 4. Lime 5. Ferric chloride – FeCl 3 6. Ferric sulfate – Fe 2 (SO 4) 3 7. Copperas – FeSO 4.7H 2 O Chemical Used for Neutralization 1. Calcium carbonate – CaCo 3 2. ,Calcium Oxide, – ,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 ...

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 ...

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 ...

A SIMPLE GUIDE TO THE CHEMISTRY SELECTION AND USE OF ...
A SIMPLE GUIDE TO THE CHEMISTRY SELECTION AND USE OF ...

calcium oxide,, but is mined as limestone (CaCO3) and then heated in kilns to produce quicklime (,CaO,). It can then be slaked, or hydrated, to produce slaked/hydrated lime (Ca(OH)2). It is in the form of quicklime or slaked lime that lime is most commonly used in water and ,wastewater, treatment applications (Water Quality and Treatment, 1990).

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 ...

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 ...

Biological and Chemical Wastewater Treatment Processes ...
Biological and Chemical Wastewater Treatment Processes ...

2/12/2014, · When chlorine gas is dissolved in ,wastewater,, it rapidly hydrolyzes to hydrochloric ,acid, (HCl) and hypochlorous ,acid, (HOCl) as shown in the following chemical equation: Cl 2 +H 2 O ↔ H + +Cl - …

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).

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.

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.

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 ...

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