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Removal of COD from acidic wastewater and alkaline 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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Removal of COD from acidic wastewater and alkaline wastewater
Sodium polyacrylate - Wikipedia
Sodium polyacrylate - Wikipedia

Sodium polyacrylate,, also known as waterlock, is a sodium salt of polyacrylic ,acid, with the chemical formula [−CH 2 −CH(CO 2 Na)−] n and has broad applications in consumer products. This super-absorbent polymer (SAP) has the ability to absorb 100 to 1000 times its mass in water. ,Sodium polyacrylate, is an anionic polyelectrolyte with negatively charged carboxylic groups in the main chain.

(PDF) THE RHODES BIOSURE PROCESS ® IN ACID MINE …
(PDF) THE RHODES BIOSURE PROCESS ® IN ACID MINE …

the rhodes biosure process ® in ,acid mine, drainage ,wastewater, treatment: process development at pilot-scale

Industrial acid mine drainage and municipal wastewater co ...
Industrial acid mine drainage and municipal wastewater co ...

11/5/2020, · The acid mine drainage (AMD) generation is a, natural process produced by, the, oxidation, and, bioxidation of sulfur minerals, such as pyrite (FeS 2). Commonly, pyrite is used in oxidation processes leading to the generation of acidic conditions (see the model described by eqs.

Mining Wastewater | liquideffluents
Mining Wastewater | liquideffluents

17/5/2012, · Acid mine drainage is the formation and movement of highly acidic water rich in heavy metals. This acidic water forms through the chemical reaction of surface water (rainwater, snowmelt, pond water) and shallow subsurface water with rocks that contain sulphur-bearing minerals, resulting in sulphuric acid.

Influence of Extremophiles on the Generation of Acid Mine ...
Influence of Extremophiles on the Generation of Acid Mine ...

Keywords: ,acid mine, drainage; biooxidation studies; Pan de Azúcar ,mine, 1. Introduction ,Acid mine, drainage (AMD) is a highly acidic ,wastewater, rich in heavy metals and metalloids. Its ,generation, at abandoned and operating mining sites is a serious environ-mental problem since it can affect the surrounding ecosystems, human infrastructure, and

Technical Application Bulletin April - Hydranautics
Technical Application Bulletin April - Hydranautics

less than 2 % by weight be ,used, within 3 to 7 days and batch solutions less than 10 % be ,used, within 7 to 14 days. Theoretically, 1.47 ppm of SBS (or 0.70 ppm of sodium metabisulfite) will stoichiometrically ,neutralize, 1.0 ppm of chlorine. Designers have been known to use a …

Acid Mine Drainage: Innovative Treatment Technologies
Acid Mine Drainage: Innovative Treatment Technologies

1.2.1 ,Acid Generation, and Metals Leaching ,Acid generation, and metals dissolution are the primary problems associated with pollution from mining activities. The chemistry of these processes appears fairly straightforward, but becomes complicated quickly as geochemistry and physical characteristics can vary greatly from site to site.

Acid mine drainage wastewater photoelectrolysis for ...
Acid mine drainage wastewater photoelectrolysis for ...

Acid mine, drainage (AMD) occurs when, sulfide composite, materials are, exposed, to oxygen gas, water, and microorganisms present in the environment. An alternative for the treatment of this residual water is the generation of hydrogen gas by electrolysis using a photovoltaic system. In this work, an electrolytic cell with 304 stainless steel ...

Feasibility of Co-Treating Olive Mill Wastewater and Acid ...
Feasibility of Co-Treating Olive Mill Wastewater and Acid ...

3/10/2020, · ,Acid mine, drainage (AMD), also known as ,acid, rock drainage, can contain high concentrations of sulphate, metals, and metalloids that can contaminate groundwater and watercourses and damage the health of aquatic species, plants, wildlife, and …

Acid Mine Drainage Treatment - Water and Wastewater ...
Acid Mine Drainage Treatment - Water and Wastewater ...

Acid mine/rock drainage occurs naturally within some environments as part of the rock weathering process, but is significantly exacerbated by mining, usually within rocks containing an abundance of sulfide materials. As water comes in contact with the sulfur, it creates a sulfuric acid.

Biological remediation of acid mine drainage: Review of ...
Biological remediation of acid mine drainage: Review of ...

1/4/2020, · In brief, accelerated oxidation of sulfidic minerals (especially, iron pyrites, and other heavy metal pyrites) due to their exposure to water and oxygen is the major reason for AMD generation. Also, generation of acidic streams with high sulfate content is commonly caused by exposure and oxidation of sulfide-bound minerals or rocks.

Electricity Generation from Synthetic Acid-Mine Drainage ...
Electricity Generation from Synthetic Acid-Mine Drainage ...

Acid,-,mine, drainage (AMD) is difficult and costly to treat. We investigated a new approach to AMD treatment using fuel cell technologies to generate electricity while removing iron from the water. Utilizing a recently developed microbial fuel cell architecture, we developed an ,acid,-,mine, drainage fuel cell (AMD-FC) capable of abiotic electricity ,generation,.

Mining Wastewater | liquideffluents
Mining Wastewater | liquideffluents

17/5/2012, · Summary The mining of metallic ores (e.g. iron, copper, lead, zinc, molybdenum, and tungsten), precious metals such as gold, platinum and silver, and large scale coal mining all produces ,wastewater, (U.S.EPA, 2010). As discussed below, this ,waste water, is usually ,mine, drainage pumped from mining areas, water used and discharged from the processing of the…

Electricity Generation from Synthetic Acid-Mine Drainage ...
Electricity Generation from Synthetic Acid-Mine Drainage ...

Acid,-,mine, drainage (AMD) is difficult and costly to treat. We investigated a new approach to AMD treatment using fuel cell technologies to generate electricity while removing iron from the water. Utilizing a recently developed microbial fuel cell architecture, we developed an ,acid,-,mine, drainage fuel cell (AMD-FC) capable of abiotic electricity generation. The AMD-FC operated in fed-batch mode ...

Acid Mine Drainage Treatment - Water and Wastewater ...
Acid Mine Drainage Treatment - Water and Wastewater ...

Acid mine/rock, drainage occurs naturally within some environments as part of the, rock, weathering process, but is significantly exacerbated by, mining,, usually within rocks containing an abundance of sulfide materials. As, water, comes in contact with the sulfur, it creates a sulfuric acid.

Low TDS Acid Mine Drainage Wastewater Treatment
Low TDS Acid Mine Drainage Wastewater Treatment

Acid mine, drainage is water with pH in the range of 1-3 that drains from abandoned ,mine, sites. ,Acid, rock drainage is acidic drainage or runoff from disturbed rock or soil that could be caused by road construction or other excavation work. ,Acid, rock drainage can also result when affected rock is …

Research of acid mine wastewater treatment technology
Research of acid mine wastewater treatment technology

main method. The basic principle is to input neutralizer into ,acid wastewater,, to make heavy metal ions and hydroxyl ions react, generate precipitation of hydroxide dissolution difficulty in water, and, finally, make water to purify ,wastewater, meets emission standard. When we use the method to deal with ,wastewater,, we should know the

Influence of Extremophiles on the Generation of Acid Mine ...
Influence of Extremophiles on the Generation of Acid Mine ...

Keywords: ,acid mine, drainage; biooxidation studies; Pan de Azúcar ,mine, 1. Introduction ,Acid mine, drainage (AMD) is a highly acidic ,wastewater, rich in heavy metals and metalloids. Its generation at abandoned and operating mining sites is a serious environ-mental problem since it can affect the surrounding ecosystems, human infrastructure, and

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