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Gel breaking principle 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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Gel breaking principle of fracturing flowback fluid
Comprehensive utilization of acidic wastewater from 33 ...
Comprehensive utilization of acidic wastewater from 33 ...

The purification and reuse of waste H 2 SO 4 , could drastically reduce the consumption and discharge of H 2 SO 4 by about 75%, leading to significant economic and environmental benefits. 3.4 General flowchart of comprehensive utilization of ,wastewater, The above research enabled comprehensive utilization of the ,wastewater,, which was fed into ,ultrafiltration, systems at 45 °C to concentrate to one fifth to one‐tenth …

Ultrafiltration Systems | Cutting Tool Engineering
Ultrafiltration Systems | Cutting Tool Engineering

PRAB enhances its line of ,Ultrafiltration Systems, for metalworking companies that separate emulsified oils and suspended solids from ,wastewater, and coolant. The engineered systems use a hollow fiber, tubular or spiral wound membrane to achieve requiredµm filtration levels.

CROSSFLOW ULTRAFILTRATION FOR REMOVING DIRECT-15 DYE …
CROSSFLOW ULTRAFILTRATION FOR REMOVING DIRECT-15 DYE …

at pH 4 (,acidic, condition) while the highest dye removal observed at pH 7. Data collection could be used to improve the effectiveness of dye removal from textile industry ,wastewater, using membrane technology. Keywords: ,Ultrafiltration,, membrane separation, dye, crossflow ,ultrafiltration,, cake resistance 1. INTRODUCTION

Removal of heavy metals by ultrafiltration
Removal of heavy metals by ultrafiltration

In this study, ,ultrafiltration, is presented as a useful technique to recover heavy metals present in aqueous solutions, without the need of adding further substances. Specifically, recovery of mixtures of iron (II) and iron (III), copper (II) and chromium (III) is presented. Ceramic membranes are …

Performance and Mechanisms of Ultrafiltration Membrane ...
Performance and Mechanisms of Ultrafiltration Membrane ...

A novel electrocoagulation membrane reactor (ECMR) was developed, in which ,ultrafiltration, (UF) membrane modules are placed between electrodes to improve effluent water quality and reduce membrane fouling. Experiments with feedwater containing clays (kaolinite) and natural organic matter (humic acid) revealed that the combined effect of coagulation and electric field mitigated membrane …

Ultrafiltration Systems | Cutting Tool Engineering
Ultrafiltration Systems | Cutting Tool Engineering

PRAB enhances its line of ,Ultrafiltration Systems, for metalworking companies that separate emulsified oils and suspended solids from ,wastewater, and coolant. The engineered systems use a hollow fiber, tubular or spiral wound membrane to achieve requiredµm filtration levels.

Performance and Mechanisms of Ultrafiltration Membrane ...
Performance and Mechanisms of Ultrafiltration Membrane ...

A novel electrocoagulation membrane reactor (ECMR) was developed, in which ,ultrafiltration, (UF) membrane modules are placed between electrodes to improve effluent water quality and reduce membrane fouling. Experiments with feedwater containing clays (kaolinite) and natural organic matter (humic acid) revealed that the combined effect of coagulation and electric field mitigated membrane …

Ultrafiltration Behaviour of Trihalomethanes (THMs) from ...
Ultrafiltration Behaviour of Trihalomethanes (THMs) from ...

The ultrafiltration process was carried out by using UHP-62 dead-end filter cell unit. The wastewater was initially characterised using Fourier transform infrared (FTIR) and gas chromatography (GC) to identify the presence and concentrations of THMs, respectively.

Ultrafiltration - Wikipedia
Ultrafiltration - Wikipedia

Ultrafiltration is a variety of membrane filtration in which forces like pressure or concentration gradients lead to a separation through a semipermeable membrane. Suspended solids and solutes of high molecular weight are retained in the so-called retentate, while water and low molecular weight solutes pass through the membrane in the permeate. This separation process is used in industry and research …

US7438817B2 - System and method for treatment of acidic ...
US7438817B2 - System and method for treatment of acidic ...

US7438817B2 US10/899,326 US89932604A US7438817B2 US 7438817 B2 US7438817 B2 US 7438817B2 US 89932604 A US89932604 A US 89932604A US 7438817 B2 US7438817 B2 US 7438817B2 Authority

Performance and Mechanisms of Ultrafiltration Membrane ...
Performance and Mechanisms of Ultrafiltration Membrane ...

A novel electrocoagulation membrane reactor (ECMR) was developed, in which ,ultrafiltration, (UF) membrane modules are placed between electrodes to improve effluent water quality and reduce membrane fouling. Experiments with feedwater containing clays (kaolinite) and natural organic matter (humic acid) revealed that the combined effect of coagulation and electric field mitigated membrane …

Waste reuse: ultrafiltration of
Waste reuse: ultrafiltration of

Waste reuse: ,ultrafiltration, of industrial and municipal wastewaters Erik R. Christensen, Kurt W. Plaumann The purpose of the present work is to evaluate the potential role of ,ultrafiltration, (UF) for industrial and municipal water reuse. Most studies of UF have been carried out with only one or a few types of ,wastewater,, using a single type of ...

(PDF) Effects of wastewater effluent organic materials on ...
(PDF) Effects of wastewater effluent organic materials on ...

IntroductionThe objective of this research was to determine the effects of organic materials in tertiary-treated ,wastewater, effluent on fouling of polyethersulfone (PES) ultrafilters. Fractions of effluent organic materials (EfOM) were sequentially removed from the ,wastewater, effluent, using relatively gentle (neutral pH, no extractions) techniques, and the residual ,wastewater, EfOM was used in ...

Comprehensive utilization of acidic wastewater from 33 ...
Comprehensive utilization of acidic wastewater from 33 ...

The purification and reuse of waste H 2 SO 4 , could drastically reduce the consumption and discharge of H 2 SO 4 by about 75%, leading to significant economic and environmental benefits. 3.4 General flowchart of comprehensive utilization of ,wastewater, The above research enabled comprehensive utilization of the ,wastewater,, which was fed into ,ultrafiltration, systems at 45 °C to concentrate to one fifth to one‐tenth …

Removal of heavy metals by ultrafiltration
Removal of heavy metals by ultrafiltration

In this study, ,ultrafiltration, is presented as a useful technique to recover heavy metals present in aqueous solutions, without the need of adding further substances. Specifically, recovery of mixtures of iron (II) and iron (III), copper (II) and chromium (III) is presented. Ceramic membranes are …

US7438817B2 - System and method for treatment of acidic ...
US7438817B2 - System and method for treatment of acidic ...

US7438817B2 US10/899,326 US89932604A US7438817B2 US 7438817 B2 US7438817 B2 US 7438817B2 US 89932604 A US89932604 A US 89932604A US 7438817 B2 US7438817 B2 US 7438817B2 Authority

(PDF) Effects of wastewater effluent organic materials on ...
(PDF) Effects of wastewater effluent organic materials on ...

IntroductionThe objective of this research was to determine the effects of organic materials in tertiary-treated ,wastewater, effluent on fouling of polyethersulfone (PES) ultrafilters. Fractions of effluent organic materials (EfOM) were sequentially removed from the ,wastewater, effluent, using relatively gentle (neutral pH, no extractions) techniques, and the residual ,wastewater, EfOM was used in ...

Waste reuse: ultrafiltration of
Waste reuse: ultrafiltration of

Waste reuse: ,ultrafiltration, of industrial and municipal wastewaters Erik R. Christensen, Kurt W. Plaumann The purpose of the present work is to evaluate the potential role of ,ultrafiltration, (UF) for industrial and municipal water reuse. Most studies of UF have been carried out with only one or a few types of ,wastewater,, using a single type of ...

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