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Recovery and reuse 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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Recovery and reuse of fracturing flowback fluid
Combined filtration and oxalic acid leaching for ...
Combined filtration and oxalic acid leaching for ...

1/2/2021, · The procedure was conducted using a laboratory pressure ,filtration device,, provided by BHS Sonthofen (Germany), as illustrated in Fig. 1. The ,device, consisted of a jacketed cylinder, a detachable lid and a detachable bottom flange. The purpose of the bottom flange was to keep the filter medium and a metallic filter support in place.

Synergetic treatment of dye contaminated wastewater using ...
Synergetic treatment of dye contaminated wastewater using ...

In the sorption ,experiment,, the samples were placed in dark environment with stirring functions turned on while in photodegradation ,experiment,, stirring, lamp and cooling unit were turned on. Concentration measurement of sample water was conducted on a Thermo Scientific Evolution 201 UV-Visible Spectrometer (USA) with a scanning range from 700 nm to 300 nm and a scanning speed of 1 nm s −1 .

Spectroelectrochemical monitoring of contaminants during ...
Spectroelectrochemical monitoring of contaminants during ...

filtration, has received growing attention in recent years due to the wide range of applications in which it can be successfully employed. Electrochemical removal is considered as an attractive methodology for the treatment of ,wastewater, due to its efficiency in the removal of a huge number of contaminants.

(PDF) Wastewater Quality Monitoring and Treatment ...
(PDF) Wastewater Quality Monitoring and Treatment ...

Wastewater Quality Monitoring and Treatment, Philippe P. Quevauviller (Editor), Olivier Thomas (Editor), Andre Van Der Beken (Editor) ISBN: 978-0-471-49929-9 Hardcover 408 pages November 2006 The issue of water quality monitoring is becoming a huge

Filtration characteristics of garnet media before and ...
Filtration characteristics of garnet media before and ...

Diagram of the ,dynamic filtration, experiment ,device,. 1 – Raw water tank; 2 – peristaltic pump; 3 – modified garnet filter column; 4 – garnet filter column; 5 – quartz sand filter column; 6 – circulation pump; 7 – backwash water tank.

Dynamic graphene filters for selective gas-water-oil ...
Dynamic graphene filters for selective gas-water-oil ...

23/9/2015, · Thus, by comparing the adhesion energy corresponding to the ,filtration, phenomena in ,experiment,, we determined the threshold energy, approximately −650 …

CN104445095A - Method for purifying smelting waste acid ...
CN104445095A - Method for purifying smelting waste acid ...

The method comprises the following steps: adding a coordination agent into a centralized inflow adjusting pool of waste ,acid, discharged from a sulfuric ,acid, smelting system, stirring uniformly, and filtering the mixture in a filter to further remove insoluble granular impurities; separating dilute ,acid, nearly containing no metal ion and low-,acid wastewater, through a diffusion dialyzer; adsorbing such residual anion impurities as fluorine and chlorine in the dilute ,acid, …

Nanoadsorbents for wastewater treatment: next generation ...
Nanoadsorbents for wastewater treatment: next generation ...

25/5/2020, · At concentration 1.09 mg/L, the composite removed completely Cr(III) at 15 min. The removal process depends on ionic strength, initial concentration of pollutants, pH and presence of other anions. The ,experiment, was allowed to run for 4 h and found complete removal of dichromate ions and other anions at their high concentrations (Lv et al. 2011).

Efficient Synthesis of α-FeOOH from Pickling Wastewater in ...
Efficient Synthesis of α-FeOOH from Pickling Wastewater in ...

The ,acid, pickling ,wastewater, requires neutralization, ,filtration,, sedimentation, and other purification processes to obtain the purified ferrous solution. First, 10 g of iron scraps was added to 500 mL of pickling ,wastewater, to neutralize the residual ,acid,. At the same time, the Fe 3+ in the solution was reduced to Fe 2+.

<![CDATA[Química Nova]]>

The ornamental rock powder ,waste, is a non-biodegradable material, which represents the increase in environmental problem. The ,waste, was collected from a granitic rock sawing plant located in Santo Antônio de Pádua, Rio de Janeiro. The chemical-environmental characterization and classification of the ,waste, were done according to ABNT standards.

Enhancement strategy of polyethersulfone (PES) membrane by ...
Enhancement strategy of polyethersulfone (PES) membrane by ...

In this work, a typical ,experiment, to modified GO was performed by a hydrothermal method. In this typical pro- cedure, 60 mg of PF127 was dispersed in 100 ml deionized water at room temperature for 24 h. The homogenous solu- tion is then added slowly to 25 mL of GO water solution (5 mg mL–1).

Journal of Dispersion Science and Technology of Taylor ...
Journal of Dispersion Science and Technology of Taylor ...

Here, the emulsions are stabilized by the surfactant prepared simply with electrostatic interaction TA and ferrocenecarboxylic ,acid, (FA). The stability of emulsion can be enhanced because of the enhanced surface activity of surfactant with increasing ACN of TA, which was demonstrated by the measurement of ,water, separation ratio (WSR), micrographs and Zeta potential value of emulsion.

Dynamic graphene filters for selective gas-water-oil ...
Dynamic graphene filters for selective gas-water-oil ...

23/9/2015, · Thus, by comparing the adhesion energy corresponding to the ,filtration, phenomena in ,experiment,, we determined the threshold energy, approximately −650 …

CN104445095A - Method for purifying smelting waste acid ...
CN104445095A - Method for purifying smelting waste acid ...

The method comprises the following steps: adding a coordination agent into a centralized inflow adjusting pool of waste ,acid, discharged from a sulfuric ,acid, smelting system, stirring uniformly, and filtering the mixture in a filter to further remove insoluble granular impurities; separating dilute ,acid, nearly containing no metal ion and low-,acid wastewater, through a diffusion dialyzer; adsorbing such residual anion impurities as fluorine and chlorine in the dilute ,acid, …

Qualitative and Quantitative Analysis of Graphene-Based ...
Qualitative and Quantitative Analysis of Graphene-Based ...

A ,wastewater, treatment usually has three levels: a primary level, which is mechanical, involves in removing solids from raw sewage through ,filtration, as well as coagulation. This level itself would be capable of removing around half of the solids present in it.

Dynamic Membrane Filtration: Formation Filtration ...
Dynamic Membrane Filtration: Formation Filtration ...

A submerged anaerobic dynamic membrane bioreactor (AnDMBR) was operated for treatment of concentrated wastewater. The dynamic membrane (DM) or cake layer was characterized on its physicochemical ...

Dynamic Membrane Filtration: Formation Filtration ...
Dynamic Membrane Filtration: Formation Filtration ...

A submerged anaerobic, dynamic membrane bioreactor, (AnDMBR) was operated for treatment of concentrated, wastewater., The, dynamic membrane, (DM) or cake layer was characterized on its physicochemical ...

Degradation of Polar Organic Micropollutants during ...
Degradation of Polar Organic Micropollutants during ...

Atenolol was transformed almost completely to atenolol ,acid,. Rate constants of 0.1–1.3 h–1 for MCPA, 2,4-D, mecoprop, atenolol, and diclofenac, corresponding to half-lives of 0.6–6.3 h, demonstrated the great potential of RBF systems to degrade organic micropollutants and simultaneously the applicability of PPTs for micropollutants in such ,dynamic, systems.

<![CDATA[Journal of the Chilean Chemical Society]]>

Lignin from a mixture of Eucalyptus globulus and Eucalyptus nitens obtained through the kraft pulping process was used. The lignin was isolated by ,acid, precipitation and modified by a reaction with maleic anhydride. Maleated lignin (ML) was incorporated to recycled polystyrene (rPS) at 2, 5, and 10 wt-% by a melt-blending process.

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