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Removal of hypophosphite and lactic acid from acidic chemical 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 hypophosphite and lactic acid from acidic chemical wastewater
Mine Waste Management: Mine Waste Management
Mine Waste Management: Mine Waste Management

Acid ,mine, drainage is a particular problem in many mines and both ,ferrous, and precious metallic ores are the main sources of ARD.

Sources and Treatment of Wastewater in the Nonferrous ...
Sources and Treatment of Wastewater in the Nonferrous ...

In the process, the heavy metal bearing ,wastewater, is mixed with a divalent ,ferrous, salt, usually ,ferrous, sulfate (FeSO^*7HaO). This ,ferrous, salt is widely available and results as a waste product during the production of steel or titanium dioxide.

Twin Metals mine (Ely MN) - Wikipedia
Twin Metals mine (Ely MN) - Wikipedia

Copper-nickel mining can create acidic runoff known as ,acid mine, drainage that can leach heavy metals into water. Thomas Tidwell , Forest Service Chief at the time, wrote that ,acid mine, drainage could cause “serious and irreparable harm” to the BWCA by allowing drainage into Birch Lake and the Kawishiwi River.

Groundwater-Quality Analyte Descriptions
Groundwater-Quality Analyte Descriptions

Under reduced conditions, ferrous iron is stable and will remain dissolved in groundwater. When pH is low, such as in the case of acid mine drainage, substantial amounts of iron can occur in water. Iron is commonly associated with acid mine drainage, and is a secondary cause of hardness in water.

Groundwater-Quality Analyte Descriptions
Groundwater-Quality Analyte Descriptions

Under reduced conditions, ,ferrous, iron is stable and will remain dissolved in groundwater. When pH is low, such as in the case of acid ,mine, drainage, substantial amounts of iron can occur in water. Iron is commonly associated with acid ,mine, drainage, and is a secondary cause of hardness in water.

CHANGES IN RIVER WATER QUALITY DUE TO BAUXITE MINING ...
CHANGES IN RIVER WATER QUALITY DUE TO BAUXITE MINING ...

term used to refer to acid ,mine, water that arises due to mining activities and is often also called seepage water, or drainage. This water occurs due to the effect of natural oxidation of sulfide minerals (sulfur minerals) contained in rocks exposed during mining. Keep in mind that acid ,mine, drainage is not actually formed due to mining activities but any activity that

Removal of Trace Elements From Acid Mine Drainage
Removal of Trace Elements From Acid Mine Drainage

These methods and the instrumentation employed are briefly reviewed below: SAMPLE DIGESTION PROCEDURE There were three ,acid, digestion procedures used (1) Boron - 50 ml of sample was digested with 1:1 sulfuric ,acid,; (2) Phosphorus - 50 ml of sample was digested with 1 ml concentrated sulfuric ,acid, and 5 ml of concentrated nitric ,acid,; and (3) Metals - the complete procedure outlined in the EPA …

Mine Waste Management: Mine Waste Management
Mine Waste Management: Mine Waste Management

Acid mine drainage is a particular problem in many mines and both ferrous and precious metallic ores are the main sources of ARD.

Effluent Treatment Plant Design Operation And Analysis Of ...
Effluent Treatment Plant Design Operation And Analysis Of ...

Wastewaters include acidic rinsewaters together with waste ,acid,. Although many plants operate ,acid, recovery plants,(particularly those using Hydrochloric ,acid,), where the mineral ,acid, is boiled away from theiron salts, there remains a large volume of highly ,acid ferrous, sulfate or ,ferrous, …

(PDF) Characterization of Sludge Generated from Acid Mine ...
(PDF) Characterization of Sludge Generated from Acid Mine ...

Acid ,mine, drainage (AMD) waters are one of the most important ecological risks at the global level because of its high heavy metals content and strong acidity.

Environment and Climate Change Canada - Acts & Regulations ...
Environment and Climate Change Canada - Acts & Regulations ...

Also referred to as ,acid mine, drainage (AMD) or ,acid, rock drainage (ARD). B Base metals Industrial non-,ferrous, (non-iron) metals excluding precious metals. Bulk sampling A method whereby a sample (also called a gross sample) is taken from a deposit ,lot, for analysis. The bulk sample is intended to be representative of the deposit. C

wastewater | BioEnergy Consult
wastewater | BioEnergy Consult

It is important to remediate acid ,mine, drainage for it is highly acidic and toxic. It is the major contributor to the arsenic environment and something needs to be done. AMD is a rich source of heavy and corrosive metals, acidic in nature. Biological treatment of Acid ,Mine, Drainage is cost-effective, efficient and environment-friendly.

Advances in Methods for Recovery of Ferrous Alumina and ...
Advances in Methods for Recovery of Ferrous Alumina and ...

Si, Al, Fe Ca, and Mg alone form more than 85% of the chemical compounds and glasses of most fly ashes. Fly ash has a chemical composition of 70–90%, as well as glasses ,of ferrous,, alumina, silica, and CaO. Therefore, fly ash could act as a reliable and alternative source for ,ferrous,, alumina, and silica.

Nanomaterials for the Removal of Heavy Metals from Wastewater
Nanomaterials for the Removal of Heavy Metals from Wastewater

Recently, superparamagnetic hematite nanoparticles were synthesized and used to treat the ,acid mine, drainage (AMD) containing Al (III), Mg (II), Mn (II), Zn (II), Ni (II) etc. in a batch mode . The results showed that nano-hematite could totally remove Al (III), Mg (II), and Mn (II), and could remove over 80% of …

Research Overview – Institute for Water Innovation
Research Overview – Institute for Water Innovation

We are developing a commercially viable bioleaching process to recover nickel and elemental sulfur from these tailings, while reducing the risk of ,acid mine, drainage. In this process, iron oxidizing bacteria work as catalysts in oxidizing ,ferrous, iron to ferric iron. The ferric iron creates an oxidizing environment which favours nickel leaching.

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