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Treatment of acid tailings wastewater

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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Treatment of acid tailings wastewater
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 ...

Foaming in wastewater treatment plant (WWTP) - microbewiki
Foaming in wastewater treatment plant (WWTP) - microbewiki

20/4/2012, · Foaming in activated sludge process is a common operational problem in many ,wastewater, treatment plants. The foam can occur in aeration tank, ... ,Surfactant, could stabilize the foaming and allow foam to accumulate. Ho and Jenkins demonstrated the conducive effect of a slowly biodegradable ... long-chain fatty ,acid, (LCFA ...

WT37-Removal of Mn(II) from the Acid Mine Wastewaters ...
WT37-Removal of Mn(II) from the Acid Mine Wastewaters ...

Acid ,mine wastewater, (AMW), the ,wastewater, from mining activities which has low ,pH, about 3-5 and contains hazardous heavy metals such as Cu, Fe, Mn, Zn, Pb, etc. Those heavy metals pollution is of prime concern from the environmental view point. Among the heavy metals, Mn occupies the third position in the AMW from one the iron ore mining ...

Wastewater : Waters
Wastewater : Waters

Wastewater, is comprised of waste from domestic sources, commercial properties, industry and agriculture. It can contain a devastating range of potential contaminants. The analysis of these types of samples is often quite challenging due to the variability of both the chemical compounds which may be present as well as the overall composition of the ,wastewater, itself.

Phosphorus removal by acid mine drainage sludge from ...
Phosphorus removal by acid mine drainage sludge from ...

1/7/2008, · Metal leaching experiments were carried out to determine if metals were leaching from the AMD sludge during adsorption. The tests were performed by agitating a 500 mL sample of orthophosphate solution dosed with ,0.5, g AMD sludge for 1 h at a ,pH, …

THE EFFECT OF POLYMER CONCENTRATION AND SURFACTANT …
THE EFFECT OF POLYMER CONCENTRATION AND SURFACTANT …

Sarah Husnaini et al: THE EFFECT OF POLYMER CONCENTRATION AND ,SURFACTANT, TYPES ON NANOFILTRATION-,SURFACTANT, MEMBRANE FOR TEXTILE ,WASTEWATER, 1525 and ultrafiltration (UF) membranes ranges from 200 to 2000 Da. The other advantage of NF where it can separate electrolytes due to the materials containing charged groups [1].

The effect of acidic pH and presence of metals as ...
The effect of acidic pH and presence of metals as ...

The initial ,pH, of the synthetic drainage was progressively set from 7.0 to 4.0 to make it as close as possible to that of real acid ,mine, drainage. Metals were also added starting with iron, zinc, and finally copper. The effectiveness of sulfate and COD removal from the synthetic acid ,mine, drainage increased as the initial ,pH, was reduced.

Simultaneous removal of Fe(II) and Mn(II) from acid mine ...
Simultaneous removal of Fe(II) and Mn(II) from acid mine ...

1/11/2020, · The treatment of acid mine wastewater containing Fe(II) and Mn(II) has been a hot topic in a long time. This paper studied the treatment of acid mine wastewater by the electro-Fenton process. First, the effect of key parameters including initial current intensity (50−300 mA), plate spacing (0.5–3.0 cm), and initial pH (3.0–5.0), aeration rate (0−200 mL/min) were studied.

.Study of refining wastewater pollution: case of vegetable ...
.Study of refining wastewater pollution: case of vegetable ...

Acid wastewater, discharged to ,wastewater, treatment plant Storage and sales NaOH Electrolizer (H2 production) Hydrogenation process Hydrogenated oil Hydrogenated oil ... ,Surfactant, (mgL-1) 67 31 94 22.61 7.6 3.9 13.7 3.84 11.2 6.5 16.5 3.37 11.8 6.6 17.6 3.81 DO (mgO 2 L -1) 1.16 ...

Water treatment (waste water): Elbic Series Solutions for ...
Water treatment (waste water): Elbic Series Solutions for ...

In ,wastewater, treatment systems, however, decomposing lipids is challenging. Effective treatment of lipids proposed by the company involves two steps; 1) emulsification and dispersion, and 2) enzymatic hydrolysis. In the first step, ElbicYoutry-1 TM, a specially developed non-toxic ,surfactant,, is

MBAS assay - Wikipedia
MBAS assay - Wikipedia

A methylene blue active substances assay, or ,MBAS assay,, is a colorimetric analysis test method that uses methylene blue to detect the presence of anionic surfactants (such as a detergent or foaming agent) in a sample of water.An anionic ,surfactant, detected by the color reaction is called a methylene blue active substance (MBAS).. After first acidifying a water sample (with boric ,acid,, for ...

Enhanced Removal of Sulfonated Lignite from Oil Wastewater ...
Enhanced Removal of Sulfonated Lignite from Oil Wastewater ...

acid, were dispersed into 250 mL of distilled water and stirred at 80 C for 60 min to get a ,surfactant, solution with a mass concentration of 2.8%. Then, a 0.09 mol metal salt solution and 0.27 mol of urea was dissolved in 100 mL of deionized water, where the ratio of Mg to Al was 2:1.

Study on characteristics and harm of surfactants
Study on characteristics and harm of surfactants

Surfactants have wide application in commodity and industry. A large number of ,surfactant, containing ,wastewater, are discharged into the environment, resulting in harming aquatic life, polluting the water and endangering human ... lecithin, and amino ,acid,-type type according to the anion type[9].

Mining | Water for all
Mining | Water for all

For example, adding an open limestone channel can raise ,pH, by ,0.5, of ,acid mine, drainage, bringing the AMD ,0.5, closer to the target. These processes are described in detail below. Regulating ,Mine, …

Cleaning Guides | Koch Separation | Download Cleaning Guides
Cleaning Guides | Koch Separation | Download Cleaning Guides

Blend of citric ,acid,, lactic ,acid, & ,surfactant,: Minerals & metal oxides: Liquid: 5gal, 55gal: KOCHKLEEN 230: Food, dairy & beverage: Blend of caustic soda & ,surfactant,: Fat, oil & grease: ... Industrial & municipal water & ,wastewater, – RO/NF: Blend of organic ,acid, & chelating agent: Minerals & metal oxides: Powder: 45 lb, 450 lb: KOCHKLEEN P-11:

Cleaning Guides | Koch Separation | Download Cleaning Guides
Cleaning Guides | Koch Separation | Download Cleaning Guides

Blend of citric ,acid,, lactic ,acid, & ,surfactant,: Minerals & metal oxides: Liquid: 5gal, 55gal: KOCHKLEEN 230: Food, dairy & beverage: Blend of caustic soda & ,surfactant,: Fat, oil & grease: ... Industrial & municipal water & ,wastewater, – RO/NF: Blend of organic ,acid, & chelating agent: Minerals & metal oxides: Powder: 45 lb, 450 lb: KOCHKLEEN P-11:

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