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Treatment of acid wastewater by sulfurization

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 wastewater by sulfurization
Removal of Manganese(II) from Acid Mine Wastewater: A ...
Removal of Manganese(II) from Acid Mine Wastewater: A ...

We propose an alternative treatment for manganese ,mine, drainage that focuses on the synergistic interactions of Mn in ,wastewater, with co-immobilized MnOB/microalgae. Many global mining activities release large amounts of acidic ,mine, drainage with high levels of manganese (Mn) having potentially detrimental effects on the environment.

In Situ Treatment of Acid Mine Drainage | Research Project ...
In Situ Treatment of Acid Mine Drainage | Research Project ...

In Situ Treatment ,of Acid Mine, Drainage EPA Contract Number: 68D99036 Title: In Situ Treatment ,of Acid Mine, Drainage Investigators: Burnett, Mackenzie Small Business: Burnett Engineering Inc. EPA Contact: Richards, April Phase: I Project Period: September 1, 1999 through March 1, 2000 Project Amount: $69,968

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.

Removal of Pollutants from Acid Mine Wastewater Using ...
Removal of Pollutants from Acid Mine Wastewater Using ...

Acid mine, drainage (AMD) or ,acid, rock drainage (ARD) is formed when rocks and waste ,mine, materials that contain sulfide components oxidize on exposure to water or air (Naicker et al. 2003).

AMS Technologies - Environmental Benefits
AMS Technologies - Environmental Benefits

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 sulfur-bearing minerals resulting in sulfuric ,acid,.

US5645730A - Acid wastewater treatement - Google Patents
US5645730A - Acid wastewater treatement - Google Patents

A process for treating ,acid wastewater, containing heavy metals has been invented, the process including adding fly ash to the ,acid wastewater, to reduce heavy metals content of the ,acid wastewater,. In one aspect the ,acid wastewater, contains soluble iron and adding fly ash reduces the level of soluble iron. In one aspect the ,acid wastewater, contains sulfate ions and adding fly ash reduces the sulfate ion level. In one aspect solid silicate salts are added to the ,acid wastewater,.

Integrative ecological health assessments of an acid mine ...
Integrative ecological health assessments of an acid mine ...

The impact ,of acid mine, drainage (AMD) on a regional stream was evaluated using chemical analysis, biotic/ecological integrity (IBI), and habitat assessments along with the necropsy-based tissue analysis. In situ remediation tests were conducted for ,wastewater, treatment using waste oyster shells.

Constructed Wetlands Part II Acid Mine Drainage
Constructed Wetlands Part II Acid Mine Drainage

Constructed Wetlands Part II: ,Acid Mine, Drainage This file, "Constructed Wetlands Bibliography, Part II: ,Acid Mine, Drainage" is one section of a seven-part constructed wetlands bibliography on using constructed wetlands for ,wastewater, treatment. The bibliography was compiled by United States Department of Agriculture staff from

Removal of Manganese(II) from Acid Mine Wastewater: A ...
Removal of Manganese(II) from Acid Mine Wastewater: A ...

We propose an alternative treatment for manganese ,mine, drainage that focuses on the synergistic interactions of Mn in ,wastewater, with co-immobilized MnOB/microalgae. Many global mining activities release large amounts of acidic ,mine, drainage with high levels of manganese (Mn) having potentially detrimental effects on the environment.

Recovery of Byproducts from Acid Mine Drainage Treatment ...
Recovery of Byproducts from Acid Mine Drainage Treatment ...

About this book. Recent developments have provided the opportunity to recover valuable materials from AMD treatment; this is a sustainable approach that allows to reduce waste while generating incomes that balance the cost of the treatment. This book provides insights to innovative and affordable routes for AMD ...

AMS Technologies - Environmental Benefits
AMS Technologies - Environmental Benefits

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 sulfur-bearing minerals resulting in sulfuric ,acid,.

AMS Technologies - Environmental Benefits
AMS Technologies - Environmental Benefits

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 sulfur-bearing minerals resulting in sulfuric ,acid,.

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. This condition facilitates the solubility of …

Co-treatment of acid mine drainage with municipal ...
Co-treatment of acid mine drainage with municipal ...

Acid mine, drainage addition decreased municipal ,wastewater, effluent PO 4 3À concentrations below 0.2 mg/L with greater than 97% removal, demonstrating co-treatment as an alternative solution for ...

Review of Passive Systems for Acid Mine Drainage Treatment
Review of Passive Systems for Acid Mine Drainage Treatment

27/9/2016, · When appropriately designed and maintained, passive systems can provide long-term, efficient, and effective treatment for many ,acid mine drainage, (AMD) sources. Passive AMD treatment relies on natural processes to neutralize acidity and to oxidize or reduce and precipitate metal contaminants. ,Passive treatment, is most suitable for small to moderate AMD discharges of …

Final Report | In Situ Treatment of Acid Mine Drainage ...
Final Report | In Situ Treatment of Acid Mine Drainage ...

The ,acid, load historically has been 671 mg/l at an average flow rate of 95 gpm. This is equal to 140 tons ,acid, load per year. After the installation of the limestone drain the ,acid, load exiting the site was 192 mg/l which equals 42 tons ,acid, load per year, a 71% drop in ,acid, load.

Constructed Wetlands Part II Acid Mine Drainage
Constructed Wetlands Part II Acid Mine Drainage

Constructed Wetlands Part II: ,Acid Mine, Drainage This file, "Constructed Wetlands Bibliography, Part II: ,Acid Mine, Drainage" is one section of a seven-part constructed wetlands bibliography on using constructed wetlands for ,wastewater, treatment. The bibliography was compiled by United States Department of Agriculture staff from

Coal Mining Effluent Guidelines | Effluent Guidelines | US EPA
Coal Mining Effluent Guidelines | Effluent Guidelines | US EPA

Wastewater, is generated during the mining process from groundwater produced during coal extraction, from water used by operators for equipment cooling and dust control, and from precipitation entering mines. ,Wastewater, is also produced during the coal preparation process, and from contaminated stormwater at coal storage facilities.

Recovery of Byproducts from Acid Mine Drainage Treatment ...
Recovery of Byproducts from Acid Mine Drainage Treatment ...

About this book. Recent developments have provided the opportunity to recover valuable materials from AMD treatment; this is a sustainable approach that allows to reduce waste while generating incomes that balance the cost of the treatment. This book provides insights …

Integrative ecological health assessments of an acid mine ...
Integrative ecological health assessments of an acid mine ...

1/5/2010, · The contamination of water by ,acid mine, drainage can be characterized by the presence of iron hydroxide in the form of reddish-brown precipitates or “yellow boy” causing discolored or highly turbid waters, but also exceptionally clear water downstream, occurring as a result of extensive sedimentation (Lottermoser, 2007), low pH < 5.5 (Kelly, 1991), prevalence of specific algae/bacteria which occur …

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