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Hazardous Materials Disposal

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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Hazardous Materials Disposal
Zero-Liquid Discharge Treatment of Wastewater from a ...
Zero-Liquid Discharge Treatment of Wastewater from a ...

The overall research was designed to study a neutralization/precipitation-based process using NaCl, KOH, NaOH and hydrated lime as precipitating agents in the treatment of wastewater from the fertilizer industry containing phosphate and fluoride ions, the latter in the HF and H 2 SiF 6 forms in a wide range of pH, from 1.5 up to 12.

Zero-Liquid Discharge Treatment of Wastewater from a ...
Zero-Liquid Discharge Treatment of Wastewater from a ...

The overall research was designed to study a neutralization/precipitation-based process using NaCl, KOH, NaOH and hydrated lime as precipitating agents in the treatment of wastewater from the fertilizer industry containing phosphate and fluoride ions, the latter in the HF and H 2 SiF 6 forms in a wide range of pH, from 1.5 up to 12.

1a
1a

The ,acid wastewater, which results from the production of the above propellants is ,neutralized, at one of the ,wastewater, treatment facilities located on site. ,Hydrated lime, is added to the .acidic ,wastewater, and the resulting sludge (,usually, calcium sulfate) is placed in a landfill (Ref. 1, p. 2).

Implementation of a High Density Sludge 'HDS' Treatment ...
Implementation of a High Density Sludge 'HDS' Treatment ...

Lime neutralization is a frequently used method in the mining industry for the treatment of acid waters. These Iuaters contain metal ions such as zinc, manganese, copper, cadmium, lead, etc. The conventionat straight lime neutralization technology generates a Low Density Sludge (LDS) having only 1 …

Implementation of a High Density Sludge 'HDS' Treatment ...
Implementation of a High Density Sludge 'HDS' Treatment ...

Lime neutralization is a frequently used method in the mining industry for the treatment of acid waters. These Iuaters contain metal ions such as zinc, manganese, copper, cadmium, lead, etc. The conventionat straight lime neutralization technology generates a Low Density Sludge (LDS) having only 1 …

1a
1a

The ,acid wastewater, which results from the production of the above propellants is ,neutralized, at one of the ,wastewater, treatment facilities located on site. ,Hydrated lime, is added to the .acidic ,wastewater, and the resulting sludge (,usually, calcium sulfate) is placed in a landfill (Ref. 1, p. 2).

Chapter 7 - GARDGuide
Chapter 7 - GARDGuide

9/6/2012, · For example, if 100 tons of ,acid, was the amount of ,acid, to be ,neutralized,, then it can be estimated that 82 tons of ,hydrated lime, would be needed to neutralize the acidity in the water (100(0.74)/0.90). 3 Price of chemical depends on the quantity being delivered. Bulk delivery prices and small quantity delivery prices will differ.

Wastewater Demineralization by Ion Exchange
Wastewater Demineralization by Ion Exchange

The acid is easily neutralized with either limestone or hydrated lime. 10. Waste regenerant ammonium hydroxide from the anion exchange resin can be treated with hydrated lime for liberation of ammonia, which can be recovered and reused.

Industrial waste water treatment - SlideShare
Industrial waste water treatment - SlideShare

For wastes entering biological treatment processes, the pH should be maintained between 6.5 and 9 for optimum growth of the microorganisms. Acidic wastes are commonly neutralized with waste alkaline streams, lime, dolomite, ammonia, caustic soda, or soda ash. Lime is the most widely used alkaline material for neutralization acid wastes because of its low cost. Lime may be slow to react and may …

Industrial waste water treatment - SlideShare
Industrial waste water treatment - SlideShare

For wastes entering biological treatment processes, the pH should be maintained between 6.5 and 9 for optimum growth of the microorganisms. Acidic wastes are commonly neutralized with waste alkaline streams, lime, dolomite, ammonia, caustic soda, or soda ash. Lime is the most widely used alkaline material for neutralization acid wastes because of its low cost. Lime may be slow to react and may …

Mining | Water for all
Mining | Water for all

Different chemicals work better under different conditions: for example, under high flow conditions, pebble quicklime and hydrated lime are the most cost effective. Furthermore, AMD from each mine is unique due to the different combinations of acids and metals, and needs to be analyzed so the chosen chemicals are the best tailored to neutralize the specific acids and metals present [23].

Wastewater Demineralization by Ion Exchange
Wastewater Demineralization by Ion Exchange

The acid is easily neutralized with either limestone or hydrated lime. 10. Waste regenerant ammonium hydroxide from the anion exchange resin can be treated with hydrated lime for liberation of ammonia, which can be recovered and reused.

(PDF) Acid Mine Drainage (AMD): causes treatment and case ...
(PDF) Acid Mine Drainage (AMD): causes treatment and case ...

The chemicals ,usually, used for AMD effluent to levels that can be tolerated by the environ- treatment include limestone, ,hydrated lime,, soda ash, ment without significant damage. In order to minimize caustic soda, ammonia, calcium peroxide, kiln dust, and this pollution, precautions must be taken to ensure that fly ash.

(PDF) Acid Mine Drainage (AMD): causes treatment and case ...
(PDF) Acid Mine Drainage (AMD): causes treatment and case ...

The chemicals ,usually, used for AMD effluent to levels that can be tolerated by the environ- treatment include limestone, ,hydrated lime,, soda ash, ment without significant damage. In order to minimize caustic soda, ammonia, calcium peroxide, kiln dust, and this pollution, precautions must be taken to ensure that fly ash.

L- 10 Neutralization
L- 10 Neutralization

3. ,Lime,----Slurry Treatment for ,Acid, WastesSlurry Treatment for ,Acid, Wastes Mixing ,acid, wastes with ,lime, slurries is an effective procedure for neutralization. The reaction is similar to that obtained with limestone beds. In this case, however, ,lime, is used up continuously because it is converted to calcium sulfate and carried out in the waste.

Chapter 7 - GARDGuide
Chapter 7 - GARDGuide

9/6/2012, · For example, if 100 tons of ,acid, was the amount of ,acid, to be ,neutralized,, then it can be estimated that 82 tons of ,hydrated lime, would be needed to neutralize the acidity in the water (100(0.74)/0.90). 3 Price of chemical depends on the quantity being delivered. Bulk delivery prices and small quantity delivery prices will differ.

CASE STUDY: COMMON SPENT ACID MANAGEMENT FACILITY
CASE STUDY: COMMON SPENT ACID MANAGEMENT FACILITY

Neutralizing such spent acid with hydrated lime, with or without limestone, generates gypsum slurry. At average acid concentration of 20% on wt . / wt. basis, approximately 10 t 12% gypsum slurry is produced on neutralization. The neutralized slurry is then dewatered in …

L- 10 Neutralization
L- 10 Neutralization

3. ,Lime,----Slurry Treatment for ,Acid, WastesSlurry Treatment for ,Acid, Wastes Mixing ,acid, wastes with ,lime, slurries is an effective procedure for neutralization. The reaction is similar to that obtained with limestone beds. In this case, however, ,lime, is used up continuously because it is converted to calcium sulfate and carried out in the waste.

CASE STUDY: COMMON SPENT ACID MANAGEMENT FACILITY
CASE STUDY: COMMON SPENT ACID MANAGEMENT FACILITY

Neutralizing such spent acid with hydrated lime, with or without limestone, generates gypsum slurry. At average acid concentration of 20% on wt . / wt. basis, approximately 10 t 12% gypsum slurry is produced on neutralization. The neutralized slurry is then dewatered in …

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