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Membrane separation 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 separation of acid wastewater
Separations | Free Full-Text | Experimental Application of ...
Separations | Free Full-Text | Experimental Application of ...

Membrane ,filtration, processes have recently become a common application in many compartments of water and ,wastewater, treatment processes. These include reverse osmosis (RO), nanofiltration (NF), ultrafiltration (UF), and microfiltration (MF) processes, all requiring an …

A Box-Behnken Design and Response Surface Approach for the ...
A Box-Behnken Design and Response Surface Approach for the ...

Wastewater, samples collected from different industrial areas around Durban, South Africa were filtered through a 0.45 µm cellulose nitrate filter. In case of chromium (VI) determination; 10 mL of ,wastewater, was diluted 10-fold with double distilled water, then acidified with 5.0 mL of concentrated H. 2. SO. 4

Waste and Waste Water Treatment (With Diagram)
Waste and Waste Water Treatment (With Diagram)

The immense difficulty felt with tannery effluent is its ever changing composition and flow rate. Therefore, to have a proper control on effluent treatment, the different types of operational discharge are stored in a storage tank for a period of about 12 hours to equalize and to facilitate ,neutralization of acid, …

Hybrid System of Flocculation–Photocatalysis for the ...
Hybrid System of Flocculation–Photocatalysis for the ...

Flocculation performance of PAC was often affected by pH for the treatment of various industrial ,wastewater, samples, including textile dyeing ,wastewater, and dairy ,wastewater,. (20,21) In this study, the effect of pH on dye removal efficiency was investigated in treating simulative dye ,wastewater, under acidic, neutral, and alkaline conditions.

Session 49 - Water and wastewater reuse | CEST2019
Session 49 - Water and wastewater reuse | CEST2019

Acidic mine waters (AMWs) contains moderate concentrations of sulphuric ,acid,, relatively high concentrations of metals (Al, Fe, Cu and Zn) and minor amounts or rare earth elements (REE). The established management routes for AMW treatment include a ,neutralization,-precipitation step, which implies a high cost due to the reagents consumption.

Recent Applications of Electrocoagulation in Treatment of ...
Recent Applications of Electrocoagulation in Treatment of ...

A comparison of EC and EO (electro-oxidation) in treating ,Acid, Green dye 50-based synthetic ,wastewater, was done. Both processes were carried out in novel cathodic H 2 -gas-stirred batch reactors. This was proposed to reduce the capital and operating costs of the reactor by making mechanical stirring unnecessary, provided that the EC cell is designed properly.

Treatment of Denim Textile Mill Wastewaters ...
Treatment of Denim Textile Mill Wastewaters ...

CHEMICAL DESTABILIZATION Chemical clarification or destabilization generally consists of four steps: coagulation, flocculation, sedimentation and ,filtration,. As a ,wastewater, treatment process, coagulation is defined as the addition of chemicals (coagulants) to effect destabilization and aggregation of non- settleable suspended materials, commonly referred to as dispersions.

A Box-Behnken Design and Response Surface Approach for the ...
A Box-Behnken Design and Response Surface Approach for the ...

Wastewater, samples collected from different industrial areas around Durban, South Africa were filtered through a 0.45 µm cellulose nitrate filter. In case of chromium (VI) determination; 10 mL of ,wastewater, was diluted 10-fold with double distilled water, then acidified with 5.0 mL of concentrated H. 2. SO. 4

(PDF) Recent Applications of Electrocoagulation in ...
(PDF) Recent Applications of Electrocoagulation in ...

The high performance of EC in a continuous mode in removing this type of dye from ,wastewater, was proven in this pa-per [38].To summarize, EC treatment of tannery, textile, and colored waters has been under extensive development in recent years, with promising results.

Separations | Free Full-Text | Experimental Application of ...
Separations | Free Full-Text | Experimental Application of ...

Membrane ,filtration, processes have recently become a common application in many compartments of water and ,wastewater, treatment processes. These include reverse osmosis (RO), nanofiltration (NF), ultrafiltration (UF), and microfiltration (MF) processes, all requiring an …

RECOVERY OF p-TBC FROM A BUTADIENE WASHING STREAM IN …
RECOVERY OF p-TBC FROM A BUTADIENE WASHING STREAM IN …

polyphosphates to its ,wastewater, streams as a nutrient (cost reduction). ,EXPERIMENTAL, In this work, a butadiene washing stream from a rubber industry (Petroflex, Brazil), generated in the reaction area known as “Soda 23” (pH = 14, COD = 200,000 mg O2 L –1), was used. Concentrated phosphoric ,acid, (85% w/w, Fosbrasil, Brazil) was used as received.

(PDF) Recent Applications of Electrocoagulation in ...
(PDF) Recent Applications of Electrocoagulation in ...

The high performance of EC in a continuous mode in removing this type of dye from ,wastewater, was proven in this pa-per [38].To summarize, EC treatment of tannery, textile, and colored waters has been under extensive development in recent years, with promising results.

Recommended Methods of Reduction Neutralization Recovery ...
Recommended Methods of Reduction Neutralization Recovery ...

An excess of nitrous ,acid, decomposes hydrazoic ,acid, in accordance with the following equation: HN3 + HN02 -»• N2 + N20 + HgO This reaction is accomplished by diluting the hydrazoic ,acid, with 500 times its weight of water, slowly adding 12 times its weight of a 25 percent solution of sodium nitrite, agitating, and then slowly adding 14 times its weight of a 36 percent solution of nitric ,acid, or glacial acetic ,acid,.

Waste and Waste Water Treatment (With Diagram)
Waste and Waste Water Treatment (With Diagram)

The immense difficulty felt with tannery effluent is its ever changing composition and flow rate. Therefore, to have a proper control on effluent treatment, the different types of operational discharge are stored in a storage tank for a period of about 12 hours to equalize and to facilitate ,neutralization of acid, …

Session 49 - Water and wastewater reuse | CEST2019
Session 49 - Water and wastewater reuse | CEST2019

Acidic mine waters (AMWs) contains moderate concentrations of sulphuric ,acid,, relatively high concentrations of metals (Al, Fe, Cu and Zn) and minor amounts or rare earth elements (REE). The established management routes for AMW treatment include a ,neutralization,-precipitation step, which implies a high cost due to the reagents consumption.

Recommended Methods of Reduction Neutralization Recovery ...
Recommended Methods of Reduction Neutralization Recovery ...

An excess of nitrous ,acid, decomposes hydrazoic ,acid, in accordance with the following equation: HN3 + HN02 -»• N2 + N20 + HgO This reaction is accomplished by diluting the hydrazoic ,acid, with 500 times its weight of water, slowly adding 12 times its weight of a 25 percent solution of sodium nitrite, agitating, and then slowly adding 14 times its weight of a 36 percent solution of nitric ,acid, or glacial acetic ,acid,.

Clean Chemical Synthesis in Water
Clean Chemical Synthesis in Water

The decarboxylation of indole-2-carboxylic ,acid, occurred almost quantitatively in water at 255 °C within 20 minutes. The formation of inorganic salts accounts for the major waste generation in the production of various pharmaceuticals and fine chemicals in view of the frequent ,neutralization, …

Technology for treatment of lipid-rich wastewater and ...
Technology for treatment of lipid-rich wastewater and ...

1/3/2012, · The mixture of pork fat, beef suet and sunflower oil (1:1:1) was chosen as a model substrate because of the analogous fatty ,acid, composition to the fatty contaminants in ,wastewater,. The same mineral medium, prepared from water wherein salts (N[H.sub.4]N[O.sub.3], K[H.sub.2]P[O.sub.4]) containing N, P, K elements were dissolved, was used in all experiments.

Recent Applications of Electrocoagulation in Treatment of ...
Recent Applications of Electrocoagulation in Treatment of ...

A comparison of EC and EO (electro-oxidation) in treating ,Acid, Green dye 50-based synthetic ,wastewater, was done. Both processes were carried out in novel cathodic H 2 -gas-stirred batch reactors. This was proposed to reduce the capital and operating costs of the reactor by making mechanical stirring unnecessary, provided that the EC cell is designed properly.

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