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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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oxygen gas booster pump
Treat your wastewater onsite - BioGill
Treat your wastewater onsite - BioGill

pH, is a scale of measurement expressing the, acidity, or, alkalinity, of the, wastewater., In the, pH, scale, a value below 7 shows that a, wastewater, is, acidic,, a value of 7 is neutral, and values higher than 7 are alkaline. The pH values are logarithmic, meaning a pH of 6 is 10 times more, acidic, than a pH of 7.

(PDF) Reuse of wastewater from phosphate fertilizer ...
(PDF) Reuse of wastewater from phosphate fertilizer ...

Reuse of ,wastewater, from phosphate fertilizer factories can combat soil alkalinity and improve quality of potted gardenia (Gardenia jasminoides Ellis)

Water and Wastewater Management in Local Government: Final ...
Water and Wastewater Management in Local Government: Final ...

Acid Mine, drainage ,Acid mine, drainage is considered as one of the main pollutants of water in many countries that have historic or current mining activities. Although any mineral deposit contains sulphide is a potential source of AMD, certain types of mining are more prone than the others. There are records ,of acid

Stream Monitoring and Preliminary Co-Treatment of Acid ...
Stream Monitoring and Preliminary Co-Treatment of Acid ...

Alkalinity ,generation, in a novel multistage high-strength ,acid mine, drainage and municipal ,wastewater, passive co-treatment system. 2011, 30: 47-53. [13]Tuttle, J. H., Dugan, P. R., Randles, C. I. J. A. M. Microbial sulfate reduction and its potential utility as an ,acid mine, water pollution abatement procedure. 1969, 17: 297-302.

Chemical Analyser and Online Monitoring of Potable Water
Chemical Analyser and Online Monitoring of Potable Water

Alkalinity, is consumed in the conversion of Ammonia/Ammonium to Nitrate during the nitrification stage of treatment. Because most, waste waters contain, eco harmful, Phosphates, it is common also to remove, phosphorus, by use of Ferric or Alum salts. These solutions are highly, acidic, and hence can strip the natural, Alkalinity, from the, waste, samples.

Organotrophic acid-tolerant microorganisms enriched from ...
Organotrophic acid-tolerant microorganisms enriched from ...

15/8/2019, · Organotrophic ,acid,-tolerant microorganisms enriched from an ,acid mine, drainage affected environment as inoculum for ... are usually enriched from microbial consortia of municipal ,wastewater, treatment plants and other circumneutral and ... polarization curves showed power-,generation, levels of 2.4 ± 0.2 mW m-2 and 0.4 ...

pH of Water - Environmental Measurement Systems
pH of Water - Environmental Measurement Systems

1 mg/L alkalinity as CaCO3 = 1.2192 mg/L alkalinity as HCO3 – Why is pH Important? If the pH of water is too high or too low, the aquatic organisms living within it will die. pH can also affect the solubility and toxicity of chemicals and heavy metals in the water ¹².

Fe and Mn phytoremediation of acid coal mine ...
Fe and Mn phytoremediation of acid coal mine ...

Acid Mine, Drainage (AMD) is a ,wastewater, formed through a series of chemical reactions and biological activities during and after open-pit system coal exploitation. Coal containing sulfide in the presence of oxygen and air is oxidized to form sulfuric ,acid,, thus having a pH<4.

(PDF) Interpretation of pH Acidity and Alkalinity in ...
(PDF) Interpretation of pH Acidity and Alkalinity in ...

among pH, ,alkalinity,, and acidity. Confusion arises because. solutions with pH values above 7 are sometimes described as. “alkaline,” and solutions with pH v alues below 7 are sometimes ...

Removal of copper ions from acid mine drainage wastewater ...
Removal of copper ions from acid mine drainage wastewater ...

A factorial experimental design method was used to examine the "Cu2+" removal ,from acid mine drainage wastewater, by ion exchange technique. Ion Exchange technique is preferred because of reduced sludge ,generation, compared to conventional treatment techniques and better decontamination efficiency from highly diluted solutions. Factorial design of experiments is employed to study the …

Wastewater Technology Fact Sheet Chemical Precipitation
Wastewater Technology Fact Sheet Chemical Precipitation

Wastewater, must contain dissolved oxygen for reaction to proceed successfully. Alum or Filter Alum - AI2(SO4)3.14H2O Used for water softening and phosphate removal. Reacts with available alkalinity (carbonate, bicarbonate and hydroxide) or phosphate to form insoluble aluminum salts.

pH and Alkalinity | UMass Amherst MWWP
pH and Alkalinity | UMass Amherst MWWP

Alkalinity comes from rocks and soils, salts, certain plant activities, and certain industrial, wastewater, discharges. Total alkalinity is measured by collecting a water sample, and measuring the amount of acid needed to bring the sample to a pH of 4.2. At this pH all the alkaline compounds in …

Alkaline Wastewater - an overview | ScienceDirect Topics
Alkaline Wastewater - an overview | ScienceDirect Topics

The acidity or alkalinity of wastewater affects both, wastewater, treatment and the environment. Low pH indicates increasing acidity while a high pH indicates increasing alkalinity. The pH of wastewater needs to remain between 6 and 9 to protect organisms.

(PDF) Interpretation of pH Acidity and Alkalinity in ...
(PDF) Interpretation of pH Acidity and Alkalinity in ...

among pH, alkalinity, and acidity. Confusion arises because. solutions with pH values above 7 are sometimes described as. “alkaline,” and solutions with pH v alues below 7 are sometimes ...

Wastewater Effluent Discharge: Effects and Treatment Processes
Wastewater Effluent Discharge: Effects and Treatment Processes

wastewater, (van Larsdrecht, 2005). The excess content of ,phosphorus, in receiving waters usually leads to extensive algal growth (eutrophication). Controlling ,phosphorus, discharge from municipal and industrial ,wastewater, treatment plants is a key factor in preventing eutrophication of surface waters (Department of Natural Science, 2006).

Office of Wastewater Management - Hardrock Mining ...
Office of Wastewater Management - Hardrock Mining ...

Acid generation, and drainage affect both surface water and groundwater. The sources of surface water contamination are leachate from ,mine, openings, seepage and discharges from waste rock, tailings, ground water seepage, and surface water runoff from waste rock and tailings piles.

Alkalinity Generation in a Novel Multi-stage High-strength ...
Alkalinity Generation in a Novel Multi-stage High-strength ...

Passive co-treatment of high-strength ,acid mine, drainage (AMD) and municipal ,wastewater, (MWW) was examined in a laboratory-scale, four-stage continuous flow reactor system with a total residence time of 6.6 d. Synthetic AMD of pH 2.60 and an acidity of 1,870 mg/L (as CaCO3) was mixed at a 1:2 ratio with raw MWW (pH 7.67, 288 mg/L alkalinity (as CaCO3), and 265 mg/L BOD5) from the City of ...

Evaluation of the role of inherent Ca2+ in phosphorus ...
Evaluation of the role of inherent Ca2+ in phosphorus ...

Wastewater containing phosphorus, (25–100 mg P/L) was prepared using tap water or deionized water and KH 2 PO 4 as ,phosphorus, source and did not contain organics. This means that ‘experimental artificial’ ,wastewater, contained only the inorganic part of the ,wastewater, and the organics-free environment was used to investigate the role of inherent Ca 2+ in ,phosphorus, removal.

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