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Flocculation conditions 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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Flocculation conditions of acid wastewater
ChemEngineering | Free Full-Text | Removal of the ...
ChemEngineering | Free Full-Text | Removal of the ...

The combined chemical and biological treatment of this ,wastewater, in the bioreactors with hematite iron ore removed up to 70% of TOC. About 20% of TOC was removed quickly by adsorption on iron ore particles, but adsorption/precipitation of others up to 50% of TOC was due to ferrous/,ferric, ions and hydroxides produced during microbial reduction and dissolution of iron ore.

Handbook for Stabilization/Solidification of Hazardous Wastes
Handbook for Stabilization/Solidification of Hazardous Wastes

TREATMENT ,REAGENTS,: 30% Portland cement = 855 tons x ($55/ton) = $47,025 2% sodium silicate = 57 tons x ($200/ton) = $11,400 Total costs of treatment ,reagents,: $58,425 $20.50/ton LABOR COST FOR TREATMENT 1 ea Project supervisor 2 ea Technicians @ $18.50 2 ea Laborers @ $12.50 $27.50/hr x 80 hr $37.00/hr x 80 hr 25.00/hr x 80 hr Total labor cost: Expenses: @$75/day for 5 men 10 days $ 2,200 ...

A review of biological sulfate conversions in wastewater ...
A review of biological sulfate conversions in wastewater ...

15/11/2014, · The sulfur cycle connects with carbon, nitrogen and phosphorus cycles, thus a new platform of sulfur based biotechnologies incorporating sulfur cycle with other cycles can be developed, for the removal of ,sulfate, and other pollutants (e.g. carbon, …

Djamel Ghernaout - Researcher/teacher - University of Ha ...
Djamel Ghernaout - Researcher/teacher - University of Ha ...

the ,wastewater, treatment plants to obtain potable water. Treating ,wastewater, at the highest level of purity to guarantee the drinking water supply is the best approach to avoid the pollution expansion from ,wastewater, even if it is partially treated to minimize its toxic impacts and provide water for irrigation and industrial use purposes.

Spectrophotometric determination of hydroxylamine in ...
Spectrophotometric determination of hydroxylamine in ...

8/8/2017, · Abstract. Hydroxylamine, a very important intermediate in nitrification, has a direct relationship with the production of nitrous oxide in biological ,wastewater, treatment processes. The spectrophotometric method taking ,ferric ammonium sulfate, and 1, 10-phenanthroline as the oxidant and the chromogenic agent, respectively, was used to determine the ...

Removal of Trace Elements From Acid Mine Drainage
Removal of Trace Elements From Acid Mine Drainage

----- EPA-600/7-79-101 April 1979 REMOVAL ,OF TRACE ELEMENTS FROM ACID, MINE DRAINAGE by Roger C. Wilmoth and James L. Kennedy Industrial Environmental Research Laboratory Cincinnati, Ohio 45268 and Jack R. Hall and Charles W. Stuewe Hydroscience, Inc. Knoxville, Tennessee 37919 Contract No. 68-03-2568 Project Officer Roger C. Wilmoth Resource Extraction and Handling Division Industrial …

Tero Luukkonen - Assistant Professor (tenure track ...
Tero Luukkonen - Assistant Professor (tenure track ...

A bench-scale pilot test further confirmed the feasibility of granulated MK-GP in practical conditions at a municipal ,wastewater, treatment plant: consistently <4 mg/L ammonium could be reached even though ,wastewater, had low temperature (approx. 10°C).

Recent advances in fluorescence probes based on carbon ...
Recent advances in fluorescence probes based on carbon ...

The CDs with ,proved, low cytotoxicity were further used as imaging sensing ,reagents, in cell lines, plants, or animals. Song et al. [ 135 ] prepared a sulfur and nitrogen dual-doped CDs (S, N-CDs) by an acid–base neutralization and exothermic carbonization method by mixing of glucose, concentrated H 2 SO 4 , and 1,2-ethylenediamine (EDA).

New perspectives on microbial communities and biological ...
New perspectives on microbial communities and biological ...

1/2/2020, · By adding ferrihydrite into an anaerobic digestor, anaerobic ammonium oxidation was induced and the ammonium removal efficiency increased by 33%. The abundance of, FEAMMOX, bacteria was also increased, which suggested the possibility of applying, FEAMMOX, in BNR from wastewater.

WO2008030652A1 - Method of heavy metal removal from ...
WO2008030652A1 - Method of heavy metal removal from ...

Specifically, the following steps of: (a) collecting an industrial ,wastewater, containing heavy metals in a receptacle (b) adjusting the pH so said system to achieve hydroxide precipitation of said heavy metal in said industrial ,wastewater, (c) adding an effective amount of a water soluble ethylene dichloride-ammonia polymer having a molecular weight from 500 to 10,000 daltons that contain …

Biological Nutrient Removal manual
Biological Nutrient Removal manual

Biological Nutrient Removal manual. ,Minnesota Pollution Control Agency, 520 Lafayette Rd N St. Paul, MN 55155-4194 ,www.pca.state.mn.us, wq-wwtp8-21. 651-296-6300 Toll free 800-657-3864 August 2011. Biological Nutrient Removal. Authors. Kay Curtin Steve Duerre …

Dissolved Selenium(VI) Removal by Zero-Valent Iron under ...
Dissolved Selenium(VI) Removal by Zero-Valent Iron under ...

Removal of >90% Se(VI) was achieved in 4 h (PM) to 8 h (QMP) in the absence of SO 4 2– and NO 3 – (Figure 2a). The removal rates decreased approximately 10 times in the presence of SO 4 2– (1800 mg L –1), with 90% Se(VI) removal observed in 50 h (CGPM) to 191 h (QMP) (Figure 2b, Table 1).

Frontiers | Waste-Derived Nanoparticles: Synthesis ...
Frontiers | Waste-Derived Nanoparticles: Synthesis ...

The nanoparticles ,proved, to be effective photocatalyst for methyl orange dye degradation in the presence of visible light and hydrogen peroxide. These nanoparticles show promise as photo-Fenton catalysts for organic pollutants (Nayak et al., 2019). Wu et al. explored another strategy for the photocatalytic degradation of pollutants in ,wastewater,.

Ferric reduction in organic matter oxidation and its ...
Ferric reduction in organic matter oxidation and its ...

Co-treatment of acid mine drainage and municipal wastewater, as an example, has been shown to be an effective method for removing organic materials, metals, and phosphate from the both wastes. It also suggested the applicability of ferric reduction process in wastewater treatment.

Integrated Microbial Fuel Cells for Wastewater Treatment ...
Integrated Microbial Fuel Cells for Wastewater Treatment ...

The existing potential chemical energy stored in ,wastewater, is much higher than the energy required for treating the ,wastewater, (Khiewwijit et al., 2015). There is an urgent need to develop the future generation of ,wastewater, treatment plants, which should have energy-neutral operation, capable of the recovery of energy and nutrients such as nitrogen and phosphorous (Puyol et al., 2017).

Molecular and Biotechnological Aspects of Microbial ...
Molecular and Biotechnological Aspects of Microbial ...

Acidic, proteases have been grouped into ,three, families, namely, pepsin (A1), retropepsin (A2), and enzymes from pararetroviruses (A3) , and have been placed in clan AA. The members of families A1 and A2 are known to be related to each other, while those of family A3 show some relatedness to A1 and A2.

Removal of Fluorine from Wet-Process Phosphoric Acid Using ...
Removal of Fluorine from Wet-Process Phosphoric Acid Using ...

The deep removal of fluorine ,from, wet-process phosphoric ,acid, is currently a very serious issue. In this paper, an efficient liquid–liquid separation method based on a bubble membrane was developed to solve this problem. Tributyl phosphate (TBP) and silicon oil (SIO) were used as the organic phase.

Phosphorus Removal and Recovery from Digestate after ...
Phosphorus Removal and Recovery from Digestate after ...

4/6/2014, · Many commercialized processes for, phosphorus, removal from wastewater use chemical coagulation/flocculation methods by dosing divalent or trivalent metal cations (e.g., [Al(H 2 O) 6] 3+ and [Fe(H 2 O) 6] 3+, abbreviated as Al 3+ and Fe 3+ for convenience) via chemicals such as ferric chloride, ferric sulfate, aluminum sulfate, alum [KAl(SO 4) 2 ⋅12H 2 O] and poly-aluminum chloride .

Ferric reduction in organic matter oxidation and its ...
Ferric reduction in organic matter oxidation and its ...

16/2/2017, · Co-treatment of ,acid, mine drainage and municipal ,wastewater,, as an example, has been shown to be an effective method for removing organic materials, metals, and phosphate from the both wastes. It also suggested the applicability of ,ferric, reduction process in ,wastewater, treatment.

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