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Treatment of acid wastewater from factories

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 from factories
Treatment Technologies for Organic Wastewater | IntechOpen
Treatment Technologies for Organic Wastewater | IntechOpen

17/11/2011, · WHPCO process has been proposed for a variety of agro-food and industrial effluents: removal of dyestuffs from textile, ,treat, sewage sludge, purify ,wastewater, from pharmaceutical and chemical production, dumping site, or from cellulose production and pre-,treat, water streams from food-processing industries (olive oil mills, distilleries, sugar refineries, coffee production, tanneries, etc.) .

5.1 Weathering – A Practical Guide to Introductory Geology
5.1 Weathering – A Practical Guide to Introductory Geology

But in the presence of oxygen and carbonic acid, the dissolved iron is then quickly converted to the mineral hematite: 2Fe 2 + + 4HCO 3 − + ½ O 2 + 2H 2 O ↔ Fe 2 O 3 + 4H 2 CO 3 dissolved iron ions + dissolved bicarbonate ions + oxygen + water ↔ hematite + carbonic acid

Facile and low-cost synthesis of pure hematite (α-Fe2O3 ...
Facile and low-cost synthesis of pure hematite (α-Fe2O3 ...

which are excessively used in textile based industries. Such acid dyes are a threat to the environment when they are released into ,water, bodies by industries in massive quantities. Therefore synthesized ,hematite, nanoparticles are ideal to treat dye wastewater in industrial effluents because such

Catalytic Ozonation to Treat Wastewater
Catalytic Ozonation to Treat Wastewater

Keywords—,Wastewater, Treatment, Ozonation, Catalytic Ozonation I. INTRODUCTION ll over the world the major issue is to ,treat, dye ,wastewater, so it can be reused. Day by day increasing the use of dye has a ,strong, effect on environment [1]. Azo dyes are widely used in textile industry and these ,wastewater

Limestone for pH Adjustment in Industrial Wastewater ...
Limestone for pH Adjustment in Industrial Wastewater ...

The following depicts the neutralization of hydrochloric ,acid, by ,limestone,. CaCO 3 + 2HCl → CaCl 2 + CO 2 + H 2 O Due to the presence of other calcium products in the ,limestone, chips typically used it is quite possible for ,limestone, to exert alakline influenes on the ,wastewater, stream up to an beyond a pH of 11.0, meaning that an upper pH limit of 9.0 cannot be guaranteed and can easily be ...

Mitigating Impacts of Hydrogen Sulfide Induced Corrosion ...
Mitigating Impacts of Hydrogen Sulfide Induced Corrosion ...

Thiobacillus bacteria that are present in the ,wastewater, system oxidize, or react with, the hydrogen sulfide gas to form sulfuric ,acid,. The resulting sulfuric ,acid, corrodes sewer pipes and weakens concrete structures, and shortens the life of the collection system, setting the …

Facile and low-cost synthesis of pure hematite (α-Fe2O3 ...
Facile and low-cost synthesis of pure hematite (α-Fe2O3 ...

Such acid dyes are a threat to the environment when they are released into ,water, bodies by industries in massive quantities. Therefore synthesized ,hematite, nanoparticles are ideal to treat dye wastewater in industrial effluents because such nanoparticles are low cost and economical, and the synthesis procedure is rather facile and effective.

Slaughterhouse Wastewater Treatment by Combined Chemical ...
Slaughterhouse Wastewater Treatment by Combined Chemical ...

29/6/2012, · ,Slaughterhouse wastewater, contains various and high amounts of organic matter (e.g., proteins, blood, fat and lard). In order to produce an effluent suitable for stream discharge, chemical coagulation and electrocoagulation techniques have been particularly explored at the laboratory pilot scale for organic compounds removal from ,slaughterhouse, effluent.

Facile and low-cost synthesis of pure hematite (α-Fe2O3 ...
Facile and low-cost synthesis of pure hematite (α-Fe2O3 ...

Such ,acid, dyes are a threat to the environment when they are released into ,water, bodies by industries in massive quantities. Therefore synthesized ,hematite, nanoparticles are ideal to treat dye wastewater in industrial effluents because such nanoparticles are low cost and economical, and the synthesis procedure is rather facile and effective.

Semiconductor Wastewater Treatment - Ovivo
Semiconductor Wastewater Treatment - Ovivo

Semiconductor fabrication processes such as chemical mechanical planarization (CMP), lithography, and etching, stripping and cleaning, result in a variety of ,wastewater, compositions (CMP, BG, ,acid, and alkaline waste, metal-bearing waste and organic waste), which require specialized treatment to meet stringent global and local reclamation and discharge regulations.

Interaction of copper and fulvic acid at the hematite ...
Interaction of copper and fulvic acid at the hematite ...

Sorption of fulvic ,acid, to the ,hematite, decreased with increasing pH (pH 3–10) and decreasing ionic strength (0.01–0.1 M NaNO3), while the presence of 22 μM Cu had a small effect on fulvic ...

5.2 Chemical Weathering – Physical Geology
5.2 Chemical Weathering – Physical Geology

dissolved iron + bicarbonate + oxygen + water—->hematite + carbonic acid. The equation shown here is for olivine, but it could apply to almost any other ferromagnesian silicate, including pyroxene, amphibole, or biotite. Iron in the sulphide minerals (e.g., pyrite) can also be oxidized in this way.

Zinc recovery from steel-making wastes by acid pressure ...
Zinc recovery from steel-making wastes by acid pressure ...

The desirability function predicted the following optimized conditions: 20% (v/v) sulfuric acid solution, 200 min of leaching time, 7.00 g of ,waste,, and 110 mL of anhydrous EtOH, producing 19.60 g ...

Facile and low-cost synthesis of pure hematite (α-Fe2O3 ...
Facile and low-cost synthesis of pure hematite (α-Fe2O3 ...

which are excessively used in textile based industries. Such acid dyes are a threat to the environment when they are released into water bodies by industries in massive quantities. Therefore synthesized hematite nanoparticles are ideal to treat dye wastewater in industrial effluents because such

Acid-based geopolymers using waste fired brick and ...
Acid-based geopolymers using waste fired brick and ...

15/11/2020, · The higher amorphous silica and nanocrystalline ,hematite, (9.6 wt%) content in the structure of ,waste, fired brick could accelerate the hardening process of the phosphate-based geopolymer cement cured at room temperature compared to the one from MK-BA which contains amorphous silica but only about 3.0 wt% of nanocrystalline ,hematite,. This is because acid-based geopolymer from WB has been …

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