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Resource utilization 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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Resource utilization of fracturing flowback fluid
Chromium removal from industrial wastewater using ...
Chromium removal from industrial wastewater using ...

22/8/2018, · In order to study the possibility of repeated use of Cu-S·PPP-SH, the efficiency ,of chromium, removal was also tested using hexavalent ,chromium,-electroplating ,wastewater, and trivalent ,chromium,-tanning ,wastewater,. 0.5 g Cu-S·PPP-SH was added to a conical flask containing 100mL of electroplating ,wastewater, or tanning ,wastewater, sample and shaken at 25°C for 90 min. Adjust the pH of the ...

ICMIEE18-287 Efficiency of Tamarindusindica Seed Charcoal ...
ICMIEE18-287 Efficiency of Tamarindusindica Seed Charcoal ...

average only 60%,chromium, is uptaken by the pickled pelt and 40% ,chromium, remain in the liquid as wastage of chrome liquor [4]. Conventionally,chrome tanning ,wastewater, contains 1500-3000 mg/L ,chromium, [5]. Hashem et al. [6] reported that ,chromium, content in the wet blue waste chrome liquor ranges from 2656-5420 mg/L.

Statistical analyses on effective removal of cadmium and ...
Statistical analyses on effective removal of cadmium and ...

Research article Statistical analyses on effective removal of cadmium and hexavalent ,chromium, ions by multiwall carbon nanotubes (MWCNTs) K.S. Obayomia,*, J.O. Belloa, M.D. Yahyab, E. Chukwuneduma, J.B. Adeoyea a Department of Chemical Engineering, Landmark University Omu-Aran Kwara State, Nigeria b Department of Chemical Engineering, Federal University of Technology Minna Niger State, Nigeria

Adsorption of Chromium (VI) by metal hydroxide sludge from ...
Adsorption of Chromium (VI) by metal hydroxide sludge from ...

chromium, is an essential element for various applications. The most widespread properties of the ,chromium, metal deposit are their protective and decorative characteristics. It is estimated, at the European level, that 30 000 to 32 000 tons of chromic ,acid, per year are used in metal finishing.

Impact of chromium-contaminated wastewaters on the ...
Impact of chromium-contaminated wastewaters on the ...

The treated ,wastewater, discharged into tributary B had ,chromium, content between 0.3 and 1.5 mg l −1. Samples B2 and B3 collected at tributary B were the most contaminated, with a Cr(VI) concentration at least 100 times higher than the other samples analyzed (R1 and R2).

A systematic study of chromium solubility in the presence ...
A systematic study of chromium solubility in the presence ...

A systematic study ,of chromium, solubility in the presence of organic matter: consequences for the treatment ,of chromium,-containing ,wastewater, Author: Remoundaki, Emmanouela, Hatzikioseyian, Artin, Tsezos, Marios Source: Journal of chemical technology and biotechnology 2007 v.82 no.9 pp. 802-808 ISSN: 0268-2575 Subject: acetic ,acid,, alanine ...

Heavy metal and organic chemical contaminants in ...
Heavy metal and organic chemical contaminants in ...

Lanús is a significant source ,of chromium, and various organic chemical contaminants to the ,wastewater, receiving system, which ultimately links to, and contaminates, the main ‘pluvial’ rainwater collection system. Depending on ,the existence,, nature and effectiveness of any

Studies on the adsorption of chromium(VI) onto 3 ...
Studies on the adsorption of chromium(VI) onto 3 ...

SPION, ,Chromium,, 3-Mercaptopropionic ,acid,, Adsorption National Category Other Chemistry Topics Identifiers ... It has been a major contaminant associated with ,wastewater,. Moreover, ,the existence, of heavy metals in aquatic systems is a critical concern for the environment as well as industries that manufacture or consume these particular elements.

Advances in Bioresearch Advances CODEN: ABRDC3 Bioresearch
Advances in Bioresearch Advances CODEN: ABRDC3 Bioresearch

The existence, of heavy metals in urban sewage in the refinery system has caused the disruption and ... sulfuric ,acid, is applied for the process of resins' recovery. ... ,Chromium, Ion exchange process for the removal and recovery ,of chromium, has been reported as an economical

Studies on the adsorption of chromium(VI) onto 3 ...
Studies on the adsorption of chromium(VI) onto 3 ...

SPION, ,Chromium,, 3-Mercaptopropionic ,acid,, Adsorption National Category Other Chemistry Topics Identifiers ... It has been a major contaminant associated with ,wastewater,. Moreover, ,the existence, of heavy metals in aquatic systems is a critical concern for the environment as well as industries that manufacture or consume these particular elements.

1. THE ENVIRONMENTAL IMPACT OF THE ANIMAL PRODUCT ...
1. THE ENVIRONMENTAL IMPACT OF THE ANIMAL PRODUCT ...

As a result of ,wastewater, purification the ,chromium, and BOD levels of the purified water is relatively low. The sludge in the ,waste water, systems has to be brought to special dumping grounds because of its ,chromium, content. The sensitivity to ,chromium, of different species of aquatic organisms varies greatly.

Adsorption of Chromium (VI) by metal hydroxide sludge from ...
Adsorption of Chromium (VI) by metal hydroxide sludge from ...

chromium, is an essential element for various applications. The most widespread properties of the ,chromium, metal deposit are their protective and decorative characteristics. It is estimated, at the European level, that 30 000 to 32 000 tons of chromic ,acid, per year are used in metal finishing.

Removal of Chromium(VI) Using Surface Modified ...
Removal of Chromium(VI) Using Surface Modified ...

This study describes the removal ,of Chromium,(VI) from aqueous solutions using surface tailored superparamagnetic iron oxide nanoparticles (SPION) coated with …

A systematic study of chromium solubility in the presence ...
A systematic study of chromium solubility in the presence ...

A systematic study ,of chromium, solubility in the presence of organic matter: consequences for the treatment ,of chromium,-containing ,wastewater, Author: Remoundaki, Emmanouela, Hatzikioseyian, Artin, Tsezos, Marios Source: Journal of chemical technology and biotechnology 2007 v.82 no.9 pp. 802-808 ISSN: 0268-2575 Subject: acetic ,acid,, alanine ...

Heavy metal and organic chemical contaminants in ...
Heavy metal and organic chemical contaminants in ...

Lanús is a significant source ,of chromium, and various organic chemical contaminants to the ,wastewater, receiving system, which ultimately links to, and contaminates, the main ‘pluvial’ rainwater collection system. Depending on ,the existence,, nature and effectiveness of any

Tannery Wastes: Trivalent Chromium Case
Tannery Wastes: Trivalent Chromium Case

937 tons per year ,of Chromium, is wasted (Ashraf et al., 1997). In Italy, 280 000 tons of Cr-containing (1-4%Cr) dry sludges are annually produced by tanneries (Simoncini 1989; Tiravanti et al. 1997). In Thailand, about 2.55 million cubic meters of ,wastewater,, so 197.4 tons ,of Chromium, were discharged in the environment in 1992

Removal of Trivalent and Hexavalent Chromium by Seaweed ...
Removal of Trivalent and Hexavalent Chromium by Seaweed ...

Hexavalent and trivalent chromium is often present in wastewater from electroplating and metal-finishing plants. Since chromium, along with most of the heavy metals, is considered toxic, discharge limits for both Cr(III) and Cr(VI) have been instituted by most industrialized countries. Theconventionaltreatmentofspentplatingandanodizing

ICMIEE18-287 Efficiency of Tamarindusindica Seed Charcoal ...
ICMIEE18-287 Efficiency of Tamarindusindica Seed Charcoal ...

average only 60%,chromium, is uptaken by the pickled pelt and 40% ,chromium, remain in the liquid as wastage of chrome liquor [4]. Conventionally,chrome tanning ,wastewater, contains 1500-3000 mg/L ,chromium, [5]. Hashem et al. [6] reported that ,chromium, content in the wet blue waste chrome liquor ranges from 2656-5420 mg/L.

Performance of Novel Macromolecule Flocculant in the ...
Performance of Novel Macromolecule Flocculant in the ...

A novel macromolecule flocculant,polyethyleneimine-sodium xanthogenate( PEX),was applied in the treatment of ,wastewater, containing Cr( Ⅵ) ions. The trapping performance of PEX for Cr( Ⅵ) ions was studied,and effects of selective important factors,such as initial Cr( Ⅵ) concentration,p H value,coexisting inorganic substance and turbidity etc.,on the removal ,of chromium, by PEX were ...

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