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acidification fracturing flow-back fluids recyclers llc

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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acidification fracturing flow-back fluids recyclers llc
Mine Water Treatment & Tailings Reduction | Saltworks ...
Mine Water Treatment & Tailings Reduction | Saltworks ...

15/12/2020, · Once a review is complete, most of our clients’ sulfate ,removal, needs can be classified into high- and low- total dissolved solids (TDS) waters, described below. We have solutions for both, adjusted to your unique ,wastewater,, including our new SulfateSelect solution family for low TDS wastewaters.

Treatment of acidic sulfate-containing wastewater using ...
Treatment of acidic sulfate-containing wastewater using ...

Industries such as mining operations are facing challenges of treating sulfur-containing ,wastewater, such as ,acid mine, drainage (AMD) generated in their plant. The aim of this work is to evaluate the use of a revolving algal biofilm (RAB) reactor to treat AMD with low pH (3.5-4) and high sulfate content (1-4 g/L).

NUTRIENT REMOVAL PROCESSES IN WASTEWATER TREATMENT
NUTRIENT REMOVAL PROCESSES IN WASTEWATER TREATMENT

– Phosphate ,ion, (PO 4 3-) •Simplest form; available for biological •Form that is precipitated; chemical ,removal, •70% - 90% of TP – Phosphoric ,Acid, (H 3 PO 4) – Dihydrogen Phosphate (H 2 PO 4-) – Hydrogenophosphate (HPO 4 2-) • Polyphosphates (condensed phosphates) – Complex forms of inorganic orthophosphates

Treatment of acidic sulfate-containing wastewater using ...
Treatment of acidic sulfate-containing wastewater using ...

Industries such as mining operations are facing challenges of treating sulfur-containing wastewater such as acid mine drainage (AMD) generated in their plant. The aim of this work is to evaluate the use of a revolving algal biofilm (RAB) reactor to treat AMD with low pH (3.5-4) and high sulfate content (1-4 g/L).

Simultaneous sulfate and zinc removal from acid wastewater ...
Simultaneous sulfate and zinc removal from acid wastewater ...

5/3/2016, · The, MEC with acidophilic and autotrophic biocathode, can be used as an alternative to simultaneously remove sul,fate, and metals from acid wastewaters, such as acid mine drainage. Copyright © 2015 Elsevier B.V.

Effective biotreatment of acidic mine water and hospital ...
Effective biotreatment of acidic mine water and hospital ...

1/10/2020, · This study shows that hospital wastewater and acid mine water fed in the sulfidogenic FBR co-treatment process removed COD from HWW then removed metals, sulfate, and acidity from acid mine drainage. The highest remo,val, for COD and, sulfate, concentrations were, between 39.5 mg/l and 42 mg/l at 0.68 COD/SO 4 2−, ratio and retention time of 8 h.

Sulfate and metals removal from acid mine drainage in a ...
Sulfate and metals removal from acid mine drainage in a ...

High rate of biological removal of sulfate, organic matter, and metals in UASB reactor to treat synthetic acid mine drainage and cheese, whey wastewater, as carbon source Article Aug 2019

pH In Wastewater Treatment Alkalinity In Wastewater Treatment
pH In Wastewater Treatment Alkalinity In Wastewater Treatment

Acid, – An ,acid, is anything that will donate a proton (a proton is the same thing as a hydrogen ,ion, H+) in solution. A lower pH ,acid, is simply a higher concentration of protons in solution. A pH of 1 is the lowest number on the scale and therefor the most acidic measurement on the pH scale.

Mg/Al LDH Enhances Sulfate removal and Clarification of ...
Mg/Al LDH Enhances Sulfate removal and Clarification of ...

23/7/2019, · The sulfate removal from acid mine drainage (AMD) water (initial concentration: 5301 mg/L) was investigated by precipitation and/or adsorption using calcium hydroxide (Ca(OH)2) and synthetic layered double hydroxide (LDH) of the Mg/Al type.

ACID MINE DRAINAGE TREATMENT AND METAL REMOVAL …
ACID MINE DRAINAGE TREATMENT AND METAL REMOVAL …

Acid mine, drainage (AMD) is a dangerous form of pollution characterized by high acidity (pH near 2-3) and substantial quantities of ,sulfate, and soluble metals (Fe, Zn, Cu, Ni, Pb, and Cd ions). The accumulation of ,sulfate, in sediments and aquatic systems causes the release of toxic sulfides that can damage the environment ( Utgikar et al., 2002 ; Ghigliazza et al., 2000 ).

Sulphate removal from mine water with chemical biological ...
Sulphate removal from mine water with chemical biological ...

Chemical, physical and biological processes can be successfully utilized for, sulphate removal, from, mine wastewaters. Sulphate, concentrations of approximately 1,400, 700, 350 and 20 mg/L were obtained using gypsum precipitation, and ettringite precipitation, biological, sulphate, treatment and RO after gypsum pre-treatment for the treatment of sulphaterich (8 g/L SO 4 2− ), mine wastewater,, respectively.

Removal of Lignin from Wastewater through Electro-Coagulation
Removal of Lignin from Wastewater through Electro-Coagulation

The present work deals with the ,removal, of lignin (expressed as COD ,removal,) from synthetic ,wastewater through electro coagulation, in a batch reactor using ,Aluminum, as a sacrificial electrode. Effect of various parameters such as current density, pH, NaCl concentration and treatment time on the ,removal, of COD from synthetic ,wastewater, has been investigated to determine the most suitable ...

Removal of sulphate from mine waters by electrocoagulation ...
Removal of sulphate from mine waters by electrocoagulation ...

Farahmand et al. (2015) reported that, rice straw activated carbon (RSAC), can be used as an adsorbent to remove sulphate from effluents. It is not known whether EC can be coupled with RSAC adsorption as a feasible new technology to remove sulphate from mine wastewaters.

Sulfates in Wastewater Treatment | P2W - Pollution to Water
Sulfates in Wastewater Treatment | P2W - Pollution to Water

One of the processes that are causing high concentrations of Sulfates in water affected by mining is commonly referred to as Acid Mine Drainage (AMD) or Acid Rock Drainage (ARD), and is associated with the formation of acid water from Metal and Coal mines where pyrites are predominantly present.

A New Process For Sulfate Removal From Industrial Waters
A New Process For Sulfate Removal From Industrial Waters

The most common method for removing high concentrations of sulfate from water is through, addition of hydrated lime (Ca (OH)2),,, which precipitates calcium sulfate: Na 2 SO 4 + Ca (OH) 2 => CaSO 4 + 2 NaOH Calcium sulfate, which hydrates to become the common mineral gypsum, has, a, solubility of approximately, 2000 mg/L as sulfate.

Sulfate Removal Technologies A Review - Water Online
Sulfate Removal Technologies A Review - Water Online

The SAVMIN process was developed by MINTEK in South Africa in the 1990s to treat acid mine drainage. Ettringite is precipitated as in the CESR process, in this case by recycling aluminum hydroxide. Sulfate levels can be reduced to, less than 200 mg/L, by this process.

Aluminum Anodizer Implements Zero Liquid Discharge ...
Aluminum Anodizer Implements Zero Liquid Discharge ...

The more acidic waste streams were collected into segregated ,acid, streams (SAS) and nonacid streams (NAS). The SAS stream contained sulfuric ,acid, content from 1.5 to 2 percent. Dilute acids and alkaline streams were directed to the NAS system. The SAS ,wastewater, was neutralized with lime to a …

Assessment of a UASB reactor for the removal of sulfate ...
Assessment of a UASB reactor for the removal of sulfate ...

1/10/2012, · The digestion of a dilution of the acid mine drainage resulted in a, 46.3%, removal of the sulfate and an increase in the effluent pH (COD / SO 4 2 − = 0.67). An increase in the COD / SO 4 2 − ratio to 1.0 resulted in an 85.6% sulfate reduction.

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