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A mine wastewater containing copper and iron is acidic

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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A mine wastewater containing copper and iron is acidic
Dewaterability of sludge conditioned with surfactant DDBAC ...
Dewaterability of sludge conditioned with surfactant DDBAC ...

The potential benefits of ,surfactant,-conditioned sludge dewatering treatment with ,acid,/alkali pretreatment were investigated in this study. The water content of dewatered sludge ( W C) and specific resistance of filtration (SRF) were used to evaluate sludge dewaterability. Extracellular polymeric substance (EPS) content, bound water content, zeta ...

Removal of fluoride from semiconductor wastewater by ...
Removal of fluoride from semiconductor wastewater by ...

Abstract. This work employs an anodic surfactant, sodium dodecyl sulfate (SDS), to improve the flotation performance of the electrocoagulation-flotation (ECF) process to treated fluoride containing semiconductor wastewater following calcium precipitation. The dissolved fluoride ions and CaF 2 particles in the wastewater after calcium precipitation ...

Use of the Geomaterial for the Elimination of Surfactant ...
Use of the Geomaterial for the Elimination of Surfactant ...

The DBSA ,surfactant, enters the environment primarily through ,wastewater, and sludge; this can lead to severe water resource pollution. A series of batch adsorption experiment were carried out under various operating; initial concentration, pH, temperature, concentration dose of the adsorbent and the ,surfactant,.

COMBINATION OF FLOCCULANT WITH SURFACTANT FOR WASTEWATER …
COMBINATION OF FLOCCULANT WITH SURFACTANT FOR WASTEWATER …

We claim: 1. A method for treatment of ,wastewater, comprising the steps of: bringing into contact an aqueous flocculant formulation comprising an organic polymeric flocculant, an aqueous ,surfactant, formulation comprising a ,surfactant,, and ,wastewater,, wherein the flocculant is present in the ,wastewater, at a concentration from 0.0001% to 1% w/w, and the ,surfactant, is present in the ,wastewater, …

Anionic Surfactants - Alfa Chemistry
Anionic Surfactants - Alfa Chemistry

Sewage treatment industry: Anionic surfactants can be used for the treatment of domestic sewage and organic wastewater. Anionic surfactants show cationicity in both acidic and alkaline media. This makes it possible to flocculate precipitates with negatively charged aerosol particles.

Spectrophotometric determination of anionic surfactants in ...
Spectrophotometric determination of anionic surfactants in ...

surfactant (AS) is developed. SDS forms a yellow coloured complex with acridine orange (ACO), a cationic dye. The complex is extracted in toluene. The absorbance of the complex in toluene layer is measured at maximum wavelength (λmax) of 467 nm. The calibration curve is linear in the range of 0 – 6.0 ppm of SDS concentration.

Spectrophotometric determination of anionic surfactants in ...
Spectrophotometric determination of anionic surfactants in ...

surfactant, (AS) is developed. SDS forms a yellow coloured complex with acridine orange (ACO), a cationic dye. The complex is extracted in toluene. The absorbance of the complex in toluene layer is measured at maximum wavelength (λmax) of 467 nm. The calibration curve is linear in the range of 0 – 6.0 ppm of SDS concentration.

COMBINATION OF FLOCCULANT WITH SURFACTANT FOR WASTEWATER …
COMBINATION OF FLOCCULANT WITH SURFACTANT FOR WASTEWATER …

We claim: 1. A method for treatment of ,wastewater, comprising the steps of: bringing into contact an aqueous flocculant formulation comprising an organic polymeric flocculant, an aqueous ,surfactant, formulation comprising a ,surfactant,, and ,wastewater,, wherein the flocculant is present in the ,wastewater, at a concentration from 0.0001% to 1% w/w, and the ,surfactant, is present in the ,wastewater, is ...

How to Remove Emulsified Oil from Wastewater with ...
How to Remove Emulsified Oil from Wastewater with ...

If this does not work, the pH may have to be adjusted downward to 3.5 with sulfuric ,acid, to break up the ,surfactant,. Coagulants and flocculants then may be added to remove the oil. This step is followed by passing the water through a bed of organoclay to remove the last traces of oil (polymers are not economical below 330 ppm), adjustment of the pH to 5 or higher and a pass through an activated …

Recovery of Organic Acid from Wastewater
Recovery of Organic Acid from Wastewater

Recovery of Organic Acid from Wastewater The recovery of organic acids from wastewater involves the use of membrane filtration technology to concentrate and recover volatile fatty acids. Once microfiltration and ultrafiltration membranes are employed to clarify and fractionate the suspended solids, nanofiltration can be used to desalt and concentrate the organic acids.

Recovery of Organic Acid from Wastewater
Recovery of Organic Acid from Wastewater

The recovery of organic acids from wastewater involves the use of membrane filtration technology to concentrate and recover volatile fatty acids. Once microfiltration and ultrafiltration membranes are employed to clarify and fractionate the suspended solids, nanofiltration can be used to desalt and concentrate the organic acids.

Recovery of Organic Acid from Wastewater
Recovery of Organic Acid from Wastewater

Recovery of Organic Acid from Wastewater The recovery of organic acids from wastewater involves the use of membrane filtration technology to concentrate and recover volatile fatty acids. Once microfiltration and ultrafiltration membranes are employed to clarify and fractionate the suspended solids, nanofiltration can be used to desalt and concentrate the organic acids.

Dewaterability of sludge conditioned with surfactant DDBAC ...
Dewaterability of sludge conditioned with surfactant DDBAC ...

The potential benefits of ,surfactant,-conditioned sludge dewatering treatment with ,acid,/alkali pretreatment were investigated in this study. The water content of dewatered sludge ( W C) and specific resistance of filtration (SRF) were used to evaluate sludge dewaterability. Extracellular polymeric substance (EPS) content, bound water content, zeta ...

COMBINATION OF FLOCCULANT WITH SURFACTANT FOR WASTEWATER …
COMBINATION OF FLOCCULANT WITH SURFACTANT FOR WASTEWATER …

We claim: 1. A method for treatment of ,wastewater, comprising the steps of: bringing into contact an aqueous flocculant formulation comprising an organic polymeric flocculant, an aqueous ,surfactant, formulation comprising a ,surfactant,, and ,wastewater,, wherein the flocculant is present in the ,wastewater, at a concentration from 0.0001% to 1% w/w, and the ,surfactant, is present in the ,wastewater, is ...

Use of the Geomaterial for the Elimination of Surfactant ...
Use of the Geomaterial for the Elimination of Surfactant ...

The DBSA ,surfactant, enters the environment primarily through ,wastewater, and sludge; this can lead to severe water resource pollution. A series of batch adsorption experiment were carried out under various operating; initial concentration, pH, temperature, concentration dose of the adsorbent and the ,surfactant,.

How to Remove Emulsified Oil from Wastewater with ...
How to Remove Emulsified Oil from Wastewater with ...

If this does not work, the pH may have to be adjusted downward to 3.5 with sulfuric ,acid, to break up the ,surfactant,. Coagulants and flocculants then may be added to remove the oil. This step is followed by passing the water through a bed of organoclay to remove the last traces of oil (polymers are not economical below 330 ppm), adjustment of the pH to 5 or higher and a pass through an activated …

How to Remove Emulsified Oil from Wastewater with ...
How to Remove Emulsified Oil from Wastewater with ...

If this does not work, the pH may have to be adjusted downward to 3.5 with sulfuric ,acid, to break up the ,surfactant,. Coagulants and flocculants then may be added to remove the oil. This step is followed by passing the water through a bed of organoclay to remove the last traces of oil (polymers are not economical below 330 ppm), adjustment of the pH to 5 or higher and a pass through an ...

Surfactant-assisted synthesis of ZIF-8 nanocrystals for ...
Surfactant-assisted synthesis of ZIF-8 nanocrystals for ...

Phthalic acid (H 2 -PA) is the main degradation product of phthalic acid esters, which have been classified as priority pollutants in wastewater. The separation of H 2 -PA from waste water is thus of urgent importance for environmental protection.

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