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How to improve the pH value 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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How to improve the pH value of acid wastewater
Effective acid and metals treatment in tailings dams ...
Effective acid and metals treatment in tailings dams ...

This approach not only eliminated the need to find ways of disposing highly contaminated ,wastewater,, but also substantially reduced water consumption by enabling treated ,wastewater, to be reused as process water. ,Acid, B reagent was mixed into a slurry using water from the tailings dam and then sprayed onto the surface of the dam.

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

21/1/2021, · The average recovery ,concentration, in the ,acid, rinse step was 20.98 mg PO 4-P/L, with a minimum of 0.00 mg PO 4-P/L [B5] and a maximum of 125.33 mg PO 4-P/L [B3].

Reducing Wastewater Discharge by Conservation Reuse and ...
Reducing Wastewater Discharge by Conservation Reuse and ...

19/9/2016, · Effective water management focuses on keeping freshwater withdrawals as ,low, as possible by the implementation of conservation, ,reuse, and recycle policies. Conservation means eliminating waste whereas ,reuse, and recycle strategies seek ways to use water more than once prior to discharge. Using sound chemical engineering principles, plant ,wastewater, can be regenerated by water treatment …

How to Treat Wastewater from Iron and Steel Industry ...
How to Treat Wastewater from Iron and Steel Industry ...

Spent pickling solutions of various types may be produced in different, separated operations at a large mill. ,Acid, rinse waters have the same relative proportions of ,iron, salts and free ,acid, as pickling solutions, but are much more dilute; 10-15 per cent of the ,acid, used in pickling is discharged in rinse waters.

Research of acid mine wastewater treatment technology
Research of acid mine wastewater treatment technology

main method. The basic principle is to input neutralizer into ,acid wastewater,, to make heavy metal ions and hydroxyl ions react, generate precipitation of hydroxide dissolution difficulty in water, and, finally, make water to purify ,wastewater, meets emission standard. When we use the method to deal with ,wastewater,, we should know the

Acid-assisted Recycling of Fe(OH)3 Sludge as Coagulant for ...
Acid-assisted Recycling of Fe(OH)3 Sludge as Coagulant for ...

reused for four and three cycles, respectively, to treat the, MWF wastewater, because the more cycles of reuse, the lower the treatment efficiency. Nevertheless, the reuse of the acid-recovered iron coagulant without the polymer at the same iron mass has a similar treatment efficiency as the fresh FeCl 3, but the decrease of the treatment efficiency

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

21/1/2021, · The average recovery ,concentration, in the ,acid, rinse step was 20.98 mg PO 4-P/L, with a minimum of 0.00 mg PO 4-P/L [B5] and a maximum of 125.33 mg PO 4-P/L [B3].

Acid-assisted Recycling of Fe(OH)3 Sludge as Coagulant for ...
Acid-assisted Recycling of Fe(OH)3 Sludge as Coagulant for ...

reused for four and three cycles, respectively, to treat the MWF wastewater because the more cycles of reuse, the lower the treatment efficiency. Nevertheless, the reuse of the acid-recovered iron coagulant without the polymer at the same iron mass has a similar treatment efficiency as the fresh FeCl 3, but the decrease of the treatment efficiency

OPPORTUNITIES FOR WATER TREATMENT SLUDGE RE-USE
OPPORTUNITIES FOR WATER TREATMENT SLUDGE RE-USE

The ,iron, sludge can be also used for ,wastewater, treatment. ... quantity of this trash is very ,low,. 2. Floc suspensions of ,iron, and alumina oxides from thickening sections in settlement tanks and clarifiers, incl. ... An average ,concentration, of the dry weight in the discharged ,acid

Wastewater Minimization and Reuse in Mining Industry in ...
Wastewater Minimization and Reuse in Mining Industry in ...

to ,reuse, or dispose of the ,wastewater,. ,REUSE, OF ,WASTEWATER, The most important parameters, which influence the ,reuse, potential of ,wastewater, are: 1- Quantity of ,wastewater,; 2_ Characteristics of ,wastewater,; 3_ Quality requirement of the ,reuse, application; 4_ Availability of treatment technologies; and 5. Availability of fresh water. IMWA-16

Oxalic Acid Recovery from High Iron Oxalate Waste Solution ...
Oxalic Acid Recovery from High Iron Oxalate Waste Solution ...

In this method, oxalic ,acid, was used to ppt. ,iron, as ferrous oxalate dihydrate (FeC2O4.2H2O). The achieved removal efficiency of ,iron, was about 91% due to the ,low, soly. of the pptd. salt in dil. phosphoric ,acid, medium. The max. P2O5 losses were less than 1.0%.

Effective acid and metals treatment in tailings dams ...
Effective acid and metals treatment in tailings dams ...

This approach not only eliminated the need to find ways of disposing highly contaminated wastewater, but also substantially reduced water consumption by enabling treated wastewater to be reused as process water. Acid B reagent was mixed into a slurry using water from the tailings dam and then sprayed onto the surface of the dam.

GAS PROCESSING: WASTEWATER TREATMENT AND DISPOSAL:
GAS PROCESSING: WASTEWATER TREATMENT AND DISPOSAL:

Ion exchange process waste streams can have high concentrations of sodium chloride, ,acid, or base, and are high in total dissolved solids. Adjustment of pH may be necessary before discharge with the other plant ,wastewater, streams. In some cases, ,concentration, by evaporation is needed to facilitate disposal.

Advancements in the Fenton Process for Wastewater ...
Advancements in the Fenton Process for Wastewater ...

8/6/2019, · The ,reuse, methods of ,iron,-containing sludge have been successfully proved with synthetic aqueous solutions of highly toxic compounds, such as phenols and chlorophenols. However, the decontamination of real ,wastewater, by these enhanced technologies has been so far scarcely performed.

Sludge recycle and reuse in acid mine drainage treatment ...
Sludge recycle and reuse in acid mine drainage treatment ...

The low-pH sludge was withdrawn from the intermediate clarifier. The iron was recovered by acidification and used as wastewater coagulant. The recycle scheme resulted in a 30% decrease in lime requirements, and the resultant coagulant performed well when compared with stock iron coagulant solutions.

Pre-treatment of acetic acid from food processing ...
Pre-treatment of acetic acid from food processing ...

of 0.014 mol/L, ferrous ,iron concentration, of 0.051 mol/L, initial pH of 2.04, and reaction time of 144.58 min. The results showed that the Fenton process via Response Surface Methodology, at a certain level, may be used as a useful technology for pre- and post-treatment of ,wastewater, from food processing for water scarcity as reclaimed water.

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