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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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water resistance test
Microorganism - Wikipedia
Microorganism - Wikipedia

A ,microorganism,, or microbe, is a microscopic organism, which may exist in its single-celled form or a colony of cells.. The possible existence of unseen microbial life was suspected from ancient times, such as in Jain scriptures from 6th century BC India. The scientific study of ,microorganisms, began with their observation under the microscope in the 1670s by Antonie van Leeuwenhoek.

Wastewater Analysis and Study of Soil Microorganisms of ...
Wastewater Analysis and Study of Soil Microorganisms of ...

DECLARATION I, Mr Priyesh Vijay Waghmare, student of Dr. D. Y. Patil Institute forBiotechnology and Bioinformatics, Padmashree Dr. D. Y. Patil University, Navi Mumbaihereby state that to the best of my knowledge and belief, the project report entitled“,Wastewater Analysis and Study of Soil Microorganisms of, Koparkhairane Nullah.”was carried out under the guidance of Mr. Manish R.Bhat ...

Constructed Wetlands for Treating Acid Mine Drainage
Constructed Wetlands for Treating Acid Mine Drainage

source of ,acid mine, drainage is by chemosynthetic bacteria including . Thiobacillus ferooxidans, T. thiooxidans, and . Ferrobacillus ferroxidans. These bacteria are known to catalyze the oxidation of pyrite (Fennessy & Mitsch 1989). How does a wetland remove AMD? Wetlands have several functions that aid in the removal of metals in drainage and ameliorate

Acid mine drainage reduces radioactivity in fracking waste
Acid mine drainage reduces radioactivity in fracking waste

Much of the naturally occurring radioactivity in fracking ,wastewater, might be removed by blending it with another ,wastewater, from ,acid mine, drainage, according to a Duke University-led study.

Membrane Filtration - an overview | ScienceDirect Topics
Membrane Filtration - an overview | ScienceDirect Topics

Membrane filtration, can be carried out by means of two operating modes: dead-end filtration and cross-flow filtration (Fig. 2).In dead-end filtration, the feed stream flows perpendicular to the membrane and is forced through the membrane. In consequence, the retained components accumulate on the membrane surface forming a cake layer, resulting in a decrease of the filtration rate due to the ...

Characterization of an acid rock drainage microbiome and ...
Characterization of an acid rock drainage microbiome and ...

12/8/2020, · Acid rock drainage sites rich in copper tailings are generally inhabited by acidophilic iron- and sulfur-oxidizing microorganisms, such as species of Leptospirillum, Acidithiobacillus, Acidiphilium, and Thiobacillus [16–18].

Review on biological wastewater treatment and resources ...
Review on biological wastewater treatment and resources ...

When waste streams entered in to water bodies, biodegradation of the organic pollutants initiates. Oxygen is consumed by microorganism for their respiration, metabolic activities and proliferation. This situation drastically reduces the level of free oxygen available in the water.

An assessment of the Causes of Lead Pollution and the ...
An assessment of the Causes of Lead Pollution and the ...

The concentration of free lead is increased when the pH of the soil is more acidic (near pH 5). The solubility of lead phosphate, which is an insoluble compound, was enhanced by a 0.15 M citric ,acid, solution , and oxalic ,acid, was the best at enhancing the solubility of pyromorphite (Pb 5 (PO 4) 3 Cl), an insoluble phosphate [81, 82].

Recent Developments for Remediating Acidic Mine Waters ...
Recent Developments for Remediating Acidic Mine Waters ...

AMD refers to effluents draining from abandoned mines and mine wastes usually highly acidic that contain a variety of dissolved metals (Fe, Mn, Cu, Ni, and Zn) in much greater concentration than what is found in natural water bodies.

Anaerobic Respiration | Boundless Microbiology
Anaerobic Respiration | Boundless Microbiology

Sulfate-reducing bacteria may be utilized for cleaning up contaminated soils; some species are able to reduce hydrocarbons, such as benzene, toluene, ethylbenzene, and xylene. Sulfate-reducing bacteria may also be a way to deal with ,acid mine, waters.

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

Some oil–water emulsions must be heated to assist in separating the oil and water. Acidic wastewater is neutralized using, ammonia, or, soda ash., Alkaline wastewater is treated with sulphuric acid, carbon dioxide-rich flue gas or sulphur. Figure 17.3 shows a schematic diagram of API separator.

TSS Water Course Module 11 Waste Neutralization
TSS Water Course Module 11 Waste Neutralization

and the destination of the discharge (such as a stream, a well or a sewer leading to a municipal waste treatment plant). To neutralize the highly acidic wastewater from a cation resin regeneration, a supply of, alkaline, liquid is needed. An anion resin regeneration is usually performed at the same time, and its wastewater is alkaline.

Microbial Diversity of Emalahleni Mine Water in South ...
Microbial Diversity of Emalahleni Mine Water in South ...

22/1/2014, · The present study aims firstly at determining the microbial diversity of ,mine,-water collected in Emalahleni, South Africa and secondly isolating and characterizing the most dominant bacterial species found in the ,mine, water in terms of its resistance to both V 5+ and Ni 2+ in a modified ,wastewater, liquid media. The results revealed a microbial diversity of 17 orders, 27 families and 33 …

Acid mine drainage - Wikipedia
Acid mine drainage - Wikipedia

Acid mine drainage,, ,acid, and metalliferous drainage (AMD), or ,acid, rock drainage (ARD) is the outflow of acidic water from metal mines or coal mines.. ,Acid, rock drainage occurs naturally within some environments as part of the rock weathering process but is exacerbated by large-scale earth disturbances characteristic of mining and other large construction activities, usually within rocks ...

BIOTREATMENT OF ACID MINE DRAINAGE USING SEQUENCING …
BIOTREATMENT OF ACID MINE DRAINAGE USING SEQUENCING …

Two litres of activated sludge of municipal wastewater is added to the microorganisms’ growth tank. The media composition for growth of microorganisms contains 4 L distilled water. Furthermore, 8 g phosphate dihydrogen potassium, 8 g ammonium nitrate and 12 g sucrose are dissolved in one litre distilled water and then added to the mixture.

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