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Sewage Water Treatment

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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Sewage Water Treatment
Ferric salts reduce arsenic in mine effluent by combining ...
Ferric salts reduce arsenic in mine effluent by combining ...

Mine, tailings often contain the same toxic heavy metals and ,acid,-forming minerals that waste rock does, ... Dissolved arsenic concentrations of ,0.5, mg/L or less can be obtained by precipitation with ferric iron. ... ,Wastewater pH, can be within 4.5 to 9.0 for treatment, but has an optimum ,pH, range from 6.5 to 8.0.

The effect of acidic pH and presence of metals as ...
The effect of acidic pH and presence of metals as ...

The initial ,pH, of the synthetic drainage was progressively set from 7.0 to 4.0 to make it as close as possible to that of real ,acid mine, drainage. Metals were also added starting with iron, zinc, and finally copper. The effectiveness of sulfate and COD removal from the synthetic ,acid mine, drainage increased as the initial ,pH, was reduced.

WT37-Removal of Mn(II) from the Acid Mine Wastewaters ...
WT37-Removal of Mn(II) from the Acid Mine Wastewaters ...

Acid mine wastewater (AMW), the wastewater from mining activities which has low pH about 3-5 and contains hazardous heavy metals such as Cu, Fe, Mn, Zn, Pb, etc. Those heavy metals pollution is of prime concern from the environmental view point. Among the heavy metals, Mn occupies the third position in the AMW from one the iron ore mining company in

PILOT SCALE STUDY ON ACID MINE WATER TREATMENT USING …
PILOT SCALE STUDY ON ACID MINE WATER TREATMENT USING …

− ,pH, of R1 tank (mixing of ,mine, water and recirculated sludge): 7.46/6.86 − ,pH, of the first treatment phase (R2): 8.75; − ,pH, of the second treatment phase (R3): 9.47/9.51; − HRT: 56/34 min (for each tank); − Dry weight of the sludge from the settler: 13.1/11.9%; − Solids generating: 2.5/2.5 kg dry weight/m3 (2.5/2.5 kg d.w. /m3);

Iron removal in highly contaminated acid mine drainage ...
Iron removal in highly contaminated acid mine drainage ...

Passive biochemical reactors (PBRs) are a viable alternative to neutralization plants for the treatment of acid ,mine, drainage (AMD) because they require lower investment costs and use residual materials. However, high iron (Fe) concentrations (≥,0.5, g/L) in AMD are challenging for their long-term efficiency.

Wastewater Characteristics Management and Reuse in Mining ...
Wastewater Characteristics Management and Reuse in Mining ...

Table 1. Typical contaminants in ,mine wastewater, (adopted from Sivakumar et al., 1992) ... sulfuric ,acid, and lowers the ,pH,. A ,pH, of below 6.5 may be corrosive to plumbing ... ,Mine, water Sea water ,0.5,–2 60–100 200–800 1000–10 000 35 000 Table 2.

Minerals | Free Full-Text | The Use of Mining Waste ...
Minerals | Free Full-Text | The Use of Mining Waste ...

Acid ,mine, drainage (AMD) is characterized by a low ,pH, (~3), high zinc concentration (~750 mg·L−1), and high sulfate content (~6800 mg·L−1). On the other hand, the determinations made for flotation ,wastewater, showed, among others, a ,pH, of approximately 12 and ca. 780 mg·L−1 of sulfates.

Study on the treatment of acid mine wastewater by coal fly ash
Study on the treatment of acid mine wastewater by coal fly ash

Acid mine, drainage with a ,pH, in the range of about 2.5-4 and containing radionuclides (mainly uranium and radium), heavy metals (copper, zinc, cadmium, lead, nickel, cobalt, iron, manganese ...

Method for removing metals from acid mine drainage - Noram ...
Method for removing metals from acid mine drainage - Noram ...

Under agitation, 0.037 g of sodium lignosulfonates was rapidly dissolved in one liter of Sample #2 acidic ,mine wastewater,. The ,pH, remained at its initial value. 0.361 g hydrated lime was added, causing the ,pH, to increase to about 6.0. 0.189 g fly ash was added into the water, which raised the ,pH, to about 6.1.

Comprehensive review on wastewater discharged from the ...
Comprehensive review on wastewater discharged from the ...

Acidic ,mine, water and leachates can be treated using passive bioreactors with microbial activity, different organic substrates and limestone drains. Additionally bio-electrochemical systems, membranes, macrocapsules, zeolite filters, ores, physical barriers, and aquatic …

Mining Waste Treatment Technology Selection—Technology ...
Mining Waste Treatment Technology Selection—Technology ...

1.5 Σ mmole Al +3, Fe +3 + ,0.5, (1000 x 10>-,pH,) The typical or “rule of thumb” design value that has been generally cited in the literature is 0.3 moles/m 3 /day. Therefore, the metal loading rate should be ≤0.3 moles/m 3 /day for metals to be precipitated as sulfides.

WT37-Removal of Mn(II) from the Acid Mine Wastewaters ...
WT37-Removal of Mn(II) from the Acid Mine Wastewaters ...

Acid mine wastewater, (AMW), the ,wastewater, from mining activities which has low ,pH, about 3-5 and contains hazardous heavy metals such as Cu, Fe, Mn, Zn, Pb, etc. Those heavy metals pollution is of prime concern from the environmental view point. Among the heavy metals, Mn occupies the third position in the AMW from one the iron ore mining company in

Minerals | Free Full-Text | The Use of Mining Waste ...
Minerals | Free Full-Text | The Use of Mining Waste ...

Acid mine, drainage (AMD) is characterized by a low ,pH, (~3), high zinc concentration (~750 mg·L−1), and high sulfate content (~6800 mg·L−1). On the other hand, the determinations made for flotation ,wastewater, showed, among others, a ,pH, of approximately …

Mine wastewater treatment by highly calcareous and ...
Mine wastewater treatment by highly calcareous and ...

Mine wastewater treatment by highly calcareous and siliceous fly, ash: ... more efficient in neutralizing ,acid mine, water drainage, achieving ,pH,=7 within short ... ,pH 0.5, 4.95 10 3.55 24 3.48 25 3.45 48 3.20 72 3.17 96 3.07 . RESULTS AND DISCUSSION Fly ash ...

SUPPLEMENTARY MATERIALS Article The Use of Mining Waste ...
SUPPLEMENTARY MATERIALS Article The Use of Mining Waste ...

of ,Acid, and Alkaline ,Mine Wastewater, Jacek Retka 1,*, Grzegorz Rzepa 2, Tomasz Bajda 2 and Lukasz Drewniak 1 1 Institute of Microbiology, Faculty of Biology, University of Warsaw, Miecznikowa 1, 02‐096 Warsaw, Poland; ldrewniak@biol.uw.edu.pl 2 Faculty of Geology, Geophysics and Environmental Protection, Department of Mineralogy, Petrography and

Comprehensive review on wastewater discharged from the ...
Comprehensive review on wastewater discharged from the ...

Acidic ,mine, water and leachates can be treated using passive bioreactors with microbial activity, different organic substrates and limestone drains. Additionally bio-electrochemical systems, membranes, macrocapsules, zeolite filters, ores, physical barriers, and aquatic …

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