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Foreign treatment technology 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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Foreign treatment technology of fracturing flowback fluid
Neutralization | Scientific.Net
Neutralization | Scientific.Net

The experimental results showed that if neutralization/iron chipping micro-electrolysis/oxidation/coagulation are used, the removal rate of chromaticity is 100%, the removal rate of CODCr is more than 96%, CODCr could be reduced to less than 150mg/L, and the treated wastewater can come to the second discharge standard allowing to be discharged.

BR02 - Dealkalization of Bauxite residue through Acid ...
BR02 - Dealkalization of Bauxite residue through Acid ...

reached up to 94.31 % when added 18.4 % of sulfuric ,acid, and 2 % of CAM leaching at room temperature for 10 - 30 min. And the ,filtration, speed increased by about 70 times with the addition of CAM up to 4.5 %. Subsequent pot ,experiment, showed that the de-alkali …

FORM 4 - SALTS (+EXPERIMENT) | Filtration | Salt ...
FORM 4 - SALTS (+EXPERIMENT) | Filtration | Salt ...

by filtration,. Salt crystal. 7. Filter the salt crystals. 8. Rinse salt crystals using distilled water. 9. Dry salt crystals between filter paper. of Preparation of insoluble salts by precipitation reaction

(PDF) Factorial Experiments in the Optimization of ...
(PDF) Factorial Experiments in the Optimization of ...

Obviously, as mud precipitation increases, a reduction of the COD in the AWW takes place (data not reported here); moreover, the precipitate presents good qualitative characteristics that render it more suitable for ,filtration, processes.Considering the importance of these two factors in the pretreatment process, the second experimental series focused on the effects of sulfuric ,acid, and calcium ...

FRDJXODWLRQDQG Biophysical and Chemical Properties of ...
FRDJXODWLRQDQG Biophysical and Chemical Properties of ...

of the coagulants, synthetic ,wastewater,, tannery effluent, sodium hydroxide and hydrochloric ,acid, were prepared at suitable concentration to ensure that the ,experiment, would run smoothly and the results can be measured with an acceptable degree of precision. In this jar testing ,experiment,…

(PDF) Factorial Experiments in the Optimization of ...
(PDF) Factorial Experiments in the Optimization of ...

Obviously, as mud precipitation increases, a reduction of the COD in the AWW takes place (data not reported here); moreover, the precipitate presents good qualitative characteristics that render it more suitable for ,filtration, processes.Considering the importance of these two factors in the pretreatment process, the second experimental series focused on the effects of sulfuric ,acid, and calcium ...

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

2/12/2014, · Spreading the ,wastewater, into a thin film of liquid with a large surface area, consequently the required oxygen can be supplied by gaseous diffusion, which is the case of the percolating filters. Aerating the ,wastewater, by pumping air in the form of bubbles or stirring forcefully, which is the case of the activated sludge process.

Calcium Carbonate as an Agent in Acid Mine Water ...
Calcium Carbonate as an Agent in Acid Mine Water ...

Neutralization of acid mine water is the fundamental step in acid mine water treatment, accompanied by the elimi-nation of iron, partial elimination of manganese and dissolved components of heavy metals, before its discharge into the receiving body. Most frequently lime hydrate, in the form of milk of lime, is used in the neutralization process. The

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

2/12/2014, · Spreading the wastewater into a thin film of liquid with a large surface area, consequently the required oxygen can be supplied by gaseous diffusion, which is the case of the percolating filters. Aerating the wastewater by pumping air in the form of bubbles or stirring forcefully, which is the case of the activated sludge process.

Recent trends and developments in Fenton processes for ...
Recent trends and developments in Fenton processes for ...

The complex was formed in situ by adding H 2 C 2 O 4 ·2H 2 O (an organic ,acid,) and FeCl 3 to the ,wastewater,. Ganiyu et al. (2017) presented another application of iron-supporting materials, using them as functionalized cathodes in a heterogeneous electro-Fenton …

Neutralization | Scientific.Net
Neutralization | Scientific.Net

The experimental results showed that if ,neutralization,/iron chipping micro-electrolysis/oxidation/coagulation are used, the removal rate of chromaticity is 100%, the removal rate of CODCr is more than 96%, CODCr could be reduced to less than 150mg/L, and the treated ,wastewater, can come to the second discharge standard allowing to be discharged.

FRDJXODWLRQDQG Biophysical and Chemical Properties of ...
FRDJXODWLRQDQG Biophysical and Chemical Properties of ...

of the coagulants, synthetic ,wastewater,, tannery effluent, sodium hydroxide and hydrochloric ,acid, were prepared at suitable concentration to ensure that the ,experiment, would run smoothly and the results can be measured with an acceptable degree of precision. In this jar testing ,experiment,…

BR02 - Dealkalization of Bauxite residue through Acid ...
BR02 - Dealkalization of Bauxite residue through Acid ...

reached up to 94.31 % when added 18.4 % of sulfuric ,acid, and 2 % of CAM leaching at room temperature for 10 - 30 min. And the ,filtration, speed increased by about 70 times with the addition of CAM up to 4.5 %. Subsequent pot ,experiment, showed that the de-alkali bauxite residue met the growth requirements of …

Evaluation of Nanofiltration and Reverse Osmosis in the ...
Evaluation of Nanofiltration and Reverse Osmosis in the ...

to ,filtration, (R m) was calculated: ( ) (2) The nanofiltration of the ,acid, mine drainage was carried out for two hours at fixed pressure of 10 bar, feed flow rate of 2.4 LPM and temperatures ranging between 25 and 35°C. Permeate flux and temperature were measured each 15 minutes. Final accumulated permeate was collected for analysis.

Solvent Extraction of Wastewaters from Acetic-Acid Manufacture
Solvent Extraction of Wastewaters from Acetic-Acid Manufacture

The extraction mechanism is an ,acid,-base ,neutralization,. ,Acid, in the aqueous phase transfers to the solvent phase, ... so that it might conceivably be removed as a solid product ,by filtration, for eventual disposal. In the ,experiment,, 450 ml of ,wastewater, sample F was con- tacted with 50 ml of 2-ethyl-l-hexanol in a separatory funnel.

Calcium Carbonate as an Agent in Acid Mine Water ...
Calcium Carbonate as an Agent in Acid Mine Water ...

Neutralization of acid, mine water is the fundamental step in ,acid, mine water treatment, accompanied by the elimi-nation of iron, partial elimination of manganese and dissolved components of heavy metals, before its discharge into the receiving body. Most frequently lime hydrate, in the form of milk of lime, is used in the ,neutralization, process. The

Disposal of high-arsenic waste acid by the stepwise ...
Disposal of high-arsenic waste acid by the stepwise ...

Neutralization, and sulfurization processes are typical processes to treat the high-arsenic waste ,acid,. 1,3 In ,neutralization, process, arsenic in the waste ,acid, is transformed into solid hazardous waste composed of calcium arsenate/arsenite, gypsum and other compounds by using Ca-containing compounds (CaO, Ca(OH) 2 and CaCO 3) as precipitators. 8 When sulfides (Na 2 S and H 2 S) are used to precipitate …

Dephosphorisation of Acidic Wastewater
Dephosphorisation of Acidic Wastewater

wastewater into the environment, its acidic content needs to be neutralized. Currently lime (CaO) is mixed with the wastewater, which reacts with the acids present increasing the pH to an acceptable value. The products of the reaction with lime are clean water and solid particles.

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