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Treatment of acid wastewater from coal mine

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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Treatment of acid wastewater from coal mine
Removal of Organic Matter from Wastewater by Activated ...
Removal of Organic Matter from Wastewater by Activated ...

result, bacteria grow and the ,wastewater, is cleansed. The cleansed ,wastewater, is passed to the settling tank or secondary clarifier where activated sludge (,wastewater containing, microorganisms) is separated from the mixed liquor. The purpose of return sludge is to maintain a ,concentration, of ,Removal, of Organic Matter from ,Wastewater, by

Treatment and characterization of phosphorus from ...
Treatment and characterization of phosphorus from ...

14/8/2019, · Similarly [ 7, 9, 13, 16, 17] were studied on the removal of phosphate from wastewater using electrocoagulation techniques. Their result revealed that the increase in phosphorus concentrations leads to decrease in removal efficiency. Fig. 3.

1 23 1 3 - MDPI
1 23 1 3 - MDPI

for removal of nitrogen and phosphorus in wastewater [17,18]. However, for high-concentration acidic phosphorus-containing wastewater (total phosphor,us, content of, ~24,500 mg/L), generated in the processing of aluminum profiles, reducing the phosphorus content to the discharge standard ( 5 mg/L) remains a challenge.

Treatment of acidic wastewater via fluoride ions removal ...
Treatment of acidic wastewater via fluoride ions removal ...

15/11/2020, · The, acidic wastewater, is neutralized with calcium-based reagents such as calcium carbonates, oxide or hydroxide. The neutralization process facilitates precipitation of fluorite, sulfate and, phosphate, minerals. These methods are not selective and do not reduce the volume of the, wastewater,, which remains highly saline , . (2)

Phosphorus Recovery from Hydrolysed Sewage Sludge Liquid ...
Phosphorus Recovery from Hydrolysed Sewage Sludge Liquid ...

reasons. Therefore, concepts to recover ,phosphorus, within the ,wastewater, treatment scheme are particularly attractive, if they promise to obtain a product which is free from contaminants and of a ,high, quality as fertilizer [2]. To find an efficient way to release ,phosphorus, from sewage sludge is the first step for ,phosphorus, recovery [3].

Synthesis of Fe-Type Layered Double Hydroxide from Biomass ...
Synthesis of Fe-Type Layered Double Hydroxide from Biomass ...

removal of phosphorus from water and wastewater. In the adsorption method, selection of the material for removal is important, and Fe-type layered double hydroxides (LDHs) are expected to remove phosphorus effectively [8]. LDH is a nonstoichiometric compound represented by the general formula [M. 2+ 1-x. M. 3+ x (OH) 2][A. x/n n-·mH. 2. O]. Here, M. 2+ is a

Adsorptive Removal of Phosphorus using Metal-Loaded ...
Adsorptive Removal of Phosphorus using Metal-Loaded ...

wastewater containing high, concentrations of ,phosphorus,, they are unsuitable for wastewaters ,containing, low or trace concentrations of ,phosphorus,. Adsorption and ion exchange technologies are much more suitable than other methods for removing low or trace concentrations of phosphate from aqueous solutions.

SL349/SS551: Onsite Sewage Treatment and Disposal Systems ...
SL349/SS551: Onsite Sewage Treatment and Disposal Systems ...

Phosphorus, enters ,wastewater, from human wastes, food residues, detergents, and soaps. There is little ,removal, of P in the septic tank. However, P can be attenuated in soil during the disposal stage, when P-bearing effluent is percolated through the drain field.

Treatment and characterization of phosphorus from ...
Treatment and characterization of phosphorus from ...

14/8/2019, · Similarly [ 7, 9, 13, 16, 17] were studied on the ,removal, of phosphate from ,wastewater, using electrocoagulation techniques. Their result revealed that the increase in ,phosphorus, concentrations leads to decrease in ,removal, efficiency. Fig. 3.

Phosphorus removal and recovery from wastewater via hybrid ...
Phosphorus removal and recovery from wastewater via hybrid ...

21/1/2021, · Large ,wastewater, treatment plants with ,high phosphorus, loads typically opt for an enhanced biological ,phosphorus removal, process and anaerobic digestion system 8.

(PDF) Removal and recovery of phosphorus from water by ...
(PDF) Removal and recovery of phosphorus from water by ...

Introduction Phosphorus removal methods from wastewater including chemical precipitation, crystallization including MAP (magnesium Phosphorus is an essential, often limiting, nutrient for growth of ammonium phosphate) and HAP (hydroxyapatite) processes, organisms in most ecosystems.

Mechanism for phosphorus removal from wastewater with fly ...
Mechanism for phosphorus removal from wastewater with fly ...

20/1/2021, · The removal process of phosphorus with calcium-conta,ining waste, materials under ambient atmosphere may involve coupled reactions between Ca(OH) 2 dissolution, chemical precipitation of hydroxyapatite, adsorption of phosphorus on the surface

Phosphorus Recovery from Hydrolysed Sewage Sludge Liquid ...
Phosphorus Recovery from Hydrolysed Sewage Sludge Liquid ...

reasons. Therefore, concepts to recover phosphorus within the wastewater treatment scheme are particularly attractive, if they promise to obtain a product which is free from contaminants and of a high quality as fertilizer [2]. To find an efficient way to release phosphorus from sewage sludge is the first step for phosphorus recovery [3].

13.phosphorus removal by chem ppt - SlideShare
13.phosphorus removal by chem ppt - SlideShare

Phosphorus Removal The most common method to remove phosphorus from a waste stream is chemical precipitation. The common precipitating cations used are Ca, Al and Fe. 12.

Adsorptive Removal of Phosphorus using Metal-Loaded ...
Adsorptive Removal of Phosphorus using Metal-Loaded ...

wastewater containing high, concentrations of ,phosphorus,, they are unsuitable for wastewaters ,containing, low or trace concentrations of ,phosphorus,. Adsorption and ion exchange technologies are much more suitable than other methods for removing low or trace concentrations of phosphate from aqueous solutions.

US4488967A - Treatment of wastewater containing phosphorus ...
US4488967A - Treatment of wastewater containing phosphorus ...

Wastewater containing phosphorus, values and BOD is initially admixed with recycled sludge ,containing, activated biomass under anaerobic conditions, then contacted with oxygen-,containing, gas, followed by separation of a dense sludge layer from the mixed liquor.

Phosphorus recovery from acidic wastewater by ...
Phosphorus recovery from acidic wastewater by ...

Phosphorus recovery, from, acidic wastewater, was carried out using lime milk at various Ca/P, molar, ratios in the range of 0.6-1.8. A, molar, ratio of Ca/P of 1.4 and above gives an 80% recovery...

Enhanced phosphorus removal from wastewater by growing ...
Enhanced phosphorus removal from wastewater by growing ...

grow in alkaline environment and has the phosphorus removal ability at lower phosphorus concentration. In this study, deep-sea bacteria with high phosphorus removal was screened and inoculated in wastewater containing BOFS. The effects of granular size and BOFS dosage, pH value, salinity and temperature on phosphorus removal in a bacteria and BOFS combined system were systematically

Removal of Arsenic from Strongly Acidic Wastewater Using ...
Removal of Arsenic from Strongly Acidic Wastewater Using ...

Strongly, acidic wastewater, (H2SO4) with a, high arsenic concentration, is produced by many industries. The, removal, of, arsenic, by traditional sulfide (e.g., Na2S, FeS) from strongly, acidic wastewater, introduces cations (Na+ and Fe2+) to the solution, which may prevent the recycle of acid.

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