Welcome to the company ! we have many years of professional experience !
rsdgj@pyzyrsd.com +86 513525609655

Engineering covering treatment technology of acid mine 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.

Certificate of Honor

Get in touch with us

We will confidentially process your data and will not pass it on to a third party.

Engineering covering treatment technology of acid mine wastewater
Textile dye wastewater characteristics and constituents of ...
Textile dye wastewater characteristics and constituents of ...

27/11/2018, · Verma et al. studied the effectiveness of magnesium chloride and ferrous sulphate as chemical coagulant materials with ,lime, as a coagulant aid for ,treating, artificial textile ,wastewater,. They introduced constituents for a synthetic textile ,wastewater, to simulate the characteristics of the real textile effluents in Tirupur (India) reported on by Eswaramoorthi et al. ( 2008 ).

Removal of Arsenic from Wastewater Using Chemical ...
Removal of Arsenic from Wastewater Using Chemical ...

treated ,wastewater,. Arsenic FeCI3 ,dosage,, mg/L removal, % 200 (unfiltered) 92.8 200 (filtered) 97.8 2 Doses?200 mg/L FeCI3 each (unfiltered) 97.9 2 Doses?200 mg/L FeCI3 each (filtered) 98.2 ferric chloride followed by hydrated ,lime, and ferric chloride and sodium sulfide followed by hydrated ,lime, and sodium sulfide were tested.

Georesources and Environment - Dalhousie University
Georesources and Environment - Dalhousie University

adsorbent ,dosage, of 21 mg/L, a rotational speed of 120 r/min, temperature 25℃, adsorption time 100 min and initial ,wastewater, pH7. The highest initial concentration of Fe 2+ , Mn 2+ , Cu 2+ and Zn 2+ was 150 mg/L, 100 mg/L, 170 mg/L and 140

lime dosing Equipment in Europe | Environmental XPRT
lime dosing Equipment in Europe | Environmental XPRT

The ,Lime, Hopper (TDC) is an equipment made of stainless steel that facilitates ,lime, dosing for the conditioning of sludge produced in ,wastewater, ... By Toro Equipment S.L. based in La Cisterniga, SPAIN .

Water Treatment Chemical - Sulfamic Acid Manufacturer from ...
Water Treatment Chemical - Sulfamic Acid Manufacturer from ...

Normal grades of hydrated ,lime, suitable for most chemical purposes will have 85 percent or more passing a 200-mesh sieve, while for special applications hydrated ,lime, may be obtained as fine as 99.5 percent passing a 325-mesh sieve.

Coagulation and Flocculation of Industrial Wastewater by ...
Coagulation and Flocculation of Industrial Wastewater by ...

From the above figure 2 chitosan ,dosage, between 12 mg/l– 30 mg/l, % reduction of COD increases. From 30 – 66 mg/l, the % reduction of COD decreases due to electrostatic repulsion of colloidal particles based on charge density effect. The optimum chitosan ,dosage, for effective coagulation and flocculation process is 30 mg/L.

Research Journal of Chemistry and Environment Res. J. Chem ...
Research Journal of Chemistry and Environment Res. J. Chem ...

concentration of Pb+2 25mg L–1, adsorbent ,dosage, 10gL–1 and particle size of biomasses 150 μm. Contact time between adsorbent and adsorbate species play an important role in the process of removal of metal pollutant from ,wastewater, by biosorption at particular pH and temperature.13,14

Removal of Dye in Wastewater by Adsorption-Coagulation ...
Removal of Dye in Wastewater by Adsorption-Coagulation ...

The conventional process to treat dye ,wastewater, is the physicochemical treatment such as coagulation, flocculation and adsorption process. A new approach has been demonstrated to treat Congo red dye ,wastewater,, which is the adsorption-coagulation hybrid process. Natural coagulant extracted from Hibiscus sabdariffa seeds is used as the

Effectiveness of chitosan as natural coagulant in treating ...
Effectiveness of chitosan as natural coagulant in treating ...

form of a pale brown ,powder, soluble in dilute acetic ,acid, hydro-chloric acids. With molecular weight 100.000-300.000. Chitosan ,powder, (5 mg) was weighed into a glass beaker, mixed with10mL of 0.1 M HCl solution, and kept for about one hour to dissolve. It was then diluted to …

Georesources and Environment - Dalhousie University
Georesources and Environment - Dalhousie University

adsorbent dosage of 21 mg/L, a rotational speed of 120 r/min, temperature 25℃, adsorption time 100 min and initial wastewater pH7. The highest initial concentration of Fe 2+ , Mn 2+ , Cu 2+ and Zn 2+ was 150 mg/L, 100 mg/L, 170 mg/L and 140

Textile dye wastewater characteristics and constituents of ...
Textile dye wastewater characteristics and constituents of ...

27/11/2018, · Verma et al. studied the effectiveness of magnesium chloride and ferrous sulphate as chemical coagulant materials with ,lime, as a coagulant aid for ,treating, artificial textile ,wastewater,. They introduced constituents for a synthetic textile ,wastewater, to simulate the characteristics of the real textile effluents in Tirupur (India) reported on by Eswaramoorthi et al. ( 2008 ).

US3855125A - Improved process for treating industrial ...
US3855125A - Improved process for treating industrial ...

Another object of the invention is to employ a novel material consisting of a core ,of lime, having a shell of cracked calcium sulfate or calcium carbonate such material being uniquely adapted to remove pollutants from ,wastewater, such as free ,acid,, phosphate salts, and turbidity in general.

Removal of Arsenic from Wastewater Using Chemical ...
Removal of Arsenic from Wastewater Using Chemical ...

treated ,wastewater,. Arsenic FeCI3 ,dosage,, mg/L removal, % 200 (unfiltered) 92.8 200 (filtered) 97.8 2 Doses?200 mg/L FeCI3 each (unfiltered) 97.9 2 Doses?200 mg/L FeCI3 each (filtered) 98.2 ferric chloride followed by hydrated ,lime, and ferric chloride and sodium sulfide followed by hydrated ,lime, and sodium sulfide were tested.

Coagulation and Flocculation of Industrial Wastewater by ...
Coagulation and Flocculation of Industrial Wastewater by ...

From the above figure 2 chitosan ,dosage, between 12 mg/l– 30 mg/l, % reduction of COD increases. From 30 – 66 mg/l, the % reduction of COD decreases due to electrostatic repulsion of colloidal particles based on charge density effect. The optimum chitosan ,dosage, for effective coagulation and flocculation process is 30 mg/L.

BARIUM CARBONATE TREATMENT OF SULFURIC ACID …
BARIUM CARBONATE TREATMENT OF SULFURIC ACID …

sulfuric ,acid, loads from the pickling operation consist of 12,350 lbs per day in the strong waste liquor and 2,180 lbs per day in the rinse-water and may vary from these figures by 35% or more (2). Logan (6) gives figures of 100,000 and 5,100 lbs of sulfuric ,acid, as waste in the production of 100,000 lbs of smokeless ,powder, and 100,000 lbs of

Application of Organic Coagulants in Water and Wastewater ...
Application of Organic Coagulants in Water and Wastewater ...

13/6/2018, · Easy to handle and apply; most commonly used; produces less sludge than lime; most effective between pH 6.5 and 7.5: Adds dissolved solids (salts) to water; effective over a limited pH range:, Sodium aluminate, Na 2 Al 2 O 4: Effective in hard waters; small dosage usually needed: Often used with alum; high cost; ineffective in soft waters

Research Journal of Chemistry and Environment Res. J. Chem ...
Research Journal of Chemistry and Environment Res. J. Chem ...

from ,wastewater, with help of various sorption parameters such as pH, metal ion concentration, adsorbent ,dosage,, particle size and contact time. Citrus limeeta is locally named as mousambi or sweet ,lime, and Brassica campestries is locally named as mustard. It grows in tropical as well as sub- tropical climate of Rajasthan.

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

As expected, the higher the ,lime dosage, the greater the pH and the greater the Fe and Mn removals. This is because the solubility of the iron and manganese oxides decreases with increasing pH. The increased suspended solids removal may be associated with the increased Fe and Mn precipitation.

Water Treatment Chemical - Sulfamic Acid Manufacturer from ...
Water Treatment Chemical - Sulfamic Acid Manufacturer from ...

Normal grades of hydrated ,lime, suitable for most chemical purposes will have 85 percent or more passing a 200-mesh sieve, while for special applications hydrated ,lime, may be obtained as fine as 99.5 percent passing a 325-mesh sieve.

Chat Online Inquiry Email

Business cooperation

+86 513525609655

Company address

Road West, North Branch, Jingkai Road, Puyang City