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Membrane treatment technology of acid 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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Membrane treatment technology of acid wastewater
Treatment and reuse of coalmine wastewater in Vietnam ...
Treatment and reuse of coalmine wastewater in Vietnam ...

Coalmine wastewater has long been a concern due to its potentially severe adverse environmental impacts, such as soil and water pollution. The wastewaters from coalmines, which are commonly referred to as acid mine drainage (AMD), are formed by the chemical and biochemical reactions in the groundwater exposed to the ore and oxygen.

Oreščanin V et al. BOAT PRESSURE WASHING WASTEWATER ...
Oreščanin V et al. BOAT PRESSURE WASHING WASTEWATER ...

below national limits with 1 g of CaO, 2.54 mg of Fe3+ in the form of FeCl 3 ×6H 2 O, and the combination of 0.25 g of CaO and 5.08 mg of Fe 3+ per 50 mL of wastewater. Both CaO (1.50 g per 50 mL of wastewater) and FC proved effi cient, but their combination yielded a …

Treatment and reuse of coalmine wastewater in Vietnam ...
Treatment and reuse of coalmine wastewater in Vietnam ...

Coalmine wastewater has long been a concern due to its potentially severe adverse environmental impacts, such as soil and water pollution. The wastewaters from coalmines, which are commonly referred to as acid mine drainage (AMD), are formed by the chemical and biochemical reactions in the groundwater exposed to the ore and oxygen.

Frontiers | Enhancing the Energy Efficiency of Wastewater ...
Frontiers | Enhancing the Energy Efficiency of Wastewater ...

The energy content of ,wastewater, is includes the heat and the organic constituents found in the inlet ,wastewater, (Tchobanoglous et al., 2009). The chemical energy content of ,wastewater, is around 13 MJ/kg COD, while heat energy is 41.9 MJ/10°C m 3 and is usually 2–4 times higher than the plant energy request, data confirmed also by WERF (2014b).

Wastewater produces electricity and desalinates water
Wastewater produces electricity and desalinates water

"However, it took 200 milliliters of an artificial ,wastewater, -- acetic ,acid, in water -- to desalinate 3 milliliters of salty water.

Technologies for Recovering Nutrients from Wastewater: A ...
Technologies for Recovering Nutrients from Wastewater: A ...

9/5/2019, · Conventional ,wastewater, treatment plants generally remove nutrients from ,wastewater, as phosphate-rich sludge and convert nitrogen-containing compounds ,into, nitrogen gas by nitrification–denitrification, to control eutrophication (De-Bashan and Bashan, 2004).

Chemicals in Water & Wastewater Treatment
Chemicals in Water & Wastewater Treatment

Chemicals in Water & Wastewater Treatment, Chemical Used for Precipitation 1. Aluminum sulfate – Al 2 (SO 4) 3.18 H 2 O 2. Aluminum chloride – AlCl 3 3. Calcium hydroxide – Ca (OH) 2 4. Lime 5. Ferric chloride – FeCl 3 6. Ferric sulfate – Fe 2 (SO 4) 3 7. Copperas – FeSO 4.7H 2 O Chemical Used for Neutralization 1. Calcium carbonate – CaCo 3 2. ,Calcium Oxide, – ,CaO

Weifeng CAO | Associate professor | pHD | Chinese Academy ...
Weifeng CAO | Associate professor | pHD | Chinese Academy ...

Effectively converting carbon dioxide into succinic acid under mild pressure with Actinobacillus succinogenes by an integrated fermentation and membrane separation process Article Jun 2018

A SIMPLE GUIDE TO THE CHEMISTRY SELECTION AND USE OF ...
A SIMPLE GUIDE TO THE CHEMISTRY SELECTION AND USE OF ...

calcium oxide,, but is mined as limestone (CaCO3) and then heated in kilns to produce quicklime (,CaO,). It can then be slaked, or hydrated, to produce slaked/hydrated lime (Ca(OH)2). It is in the form of quicklime or slaked lime that lime is most commonly used in water and ,wastewater, treatment applications (Water Quality and Treatment, 1990).

Biological and Chemical Wastewater Treatment Processes ...
Biological and Chemical Wastewater Treatment Processes ...

2/12/2014, · When chlorine gas is dissolved in ,wastewater,, it rapidly hydrolyzes to hydrochloric ,acid, (HCl) and hypochlorous ,acid, (HOCl) as shown in the following chemical equation: Cl 2 +H 2 O ↔ H + +Cl - …

A SIMPLE GUIDE TO THE CHEMISTRY SELECTION AND USE OF ...
A SIMPLE GUIDE TO THE CHEMISTRY SELECTION AND USE OF ...

calcium oxide,, but is mined as limestone (CaCO3) and then heated in kilns to produce quicklime (,CaO,). It can then be slaked, or hydrated, to produce slaked/hydrated lime (Ca(OH)2). It is in the form of quicklime or slaked lime that lime is most commonly used in water and ,wastewater, treatment applications (Water Quality and Treatment, 1990).

A review of the applications of ion floatation: wastewater ...
A review of the applications of ion floatation: wastewater ...

Moreover, by ,adding, auxiliary ligands (malic ,acid, and maleic ,acid,), the recovery efficiencies for all metal ions increased and the flotation times decreased to 40, 20 and 40 min for Zn(ii), Mn(ii) and Cu(ii), respectively, when the molar ratio of metal : sodium dodecyl sulphate : auxiliary ligand was 1 : 5 : 5. 40 It is evident that ion flotation has a high removal capacity for various metal ...

Brief Analysis of the Main Treatment Methods of Phosphoric ...
Brief Analysis of the Main Treatment Methods of Phosphoric ...

The larger the equilibrium constant is, the more stable the precipitate is, the better the precipitation effect is, the more thorough the dephosphorization is, the better the solid-liquid separation effect is, and the treatment of phosphorus-containing ,wastewater, is up to the standard, P < 0.5mg/L. ,Adding, lime can improve the pH value of ,wastewater, and remove phosphorus, at the same time, the ...

Biological and Chemical Wastewater Treatment Processes ...
Biological and Chemical Wastewater Treatment Processes ...

2/12/2014, · When chlorine gas is dissolved in ,wastewater,, it rapidly hydrolyzes to hydrochloric ,acid, (HCl) and hypochlorous ,acid, (HOCl) as shown in the following chemical equation: Cl 2 +H 2 O ↔ H + +Cl - …

Biological and Chemical Wastewater Treatment Processes ...
Biological and Chemical Wastewater Treatment Processes ...

2/12/2014, · When chlorine gas is dissolved in ,wastewater,, it rapidly hydrolyzes to hydrochloric ,acid, (HCl) and hypochlorous ,acid, (HOCl) as shown in the following chemical equation: Cl 2 +H 2 O ↔ H + +Cl - +HOCl BB4

Oreščanin V et al. BOAT PRESSURE WASHING WASTEWATER ...
Oreščanin V et al. BOAT PRESSURE WASHING WASTEWATER ...

below national limits with 1 g of CaO, 2.54 mg of Fe3+ in the form of FeCl 3 ×6H 2 O, and the combination of 0.25 g of CaO and 5.08 mg of Fe 3+ per 50 mL of wastewater. Both CaO (1.50 g per 50 mL of wastewater) and FC proved effi cient, but their combination yielded a …

Chemicals in Water & Wastewater Treatment
Chemicals in Water & Wastewater Treatment

Chemicals in Water & Wastewater Treatment, Chemical Used for Precipitation 1. Aluminum sulfate – Al 2 (SO 4) 3.18 H 2 O 2. Aluminum chloride – AlCl 3 3. Calcium hydroxide – Ca (OH) 2 4. Lime 5. Ferric chloride – FeCl 3 6. Ferric sulfate – Fe 2 (SO 4) 3 7. Copperas – FeSO 4.7H 2 O Chemical Used for Neutralization 1. Calcium carbonate – CaCo 3 2. ,Calcium Oxide, – ,CaO

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