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Treatment of acid wastewater with lime

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 with lime
Using CaO- and MgO-rich industrial waste streams for ...
Using CaO- and MgO-rich industrial waste streams for ...

Ca,(,OH,) ,2, and CaO from steel slag or concrete ,waste, can be dissolved in ,water, and reacted with CO ,2, in ambient air to capture and store carbon safely and permanently in the form of stable carbonate minerals (CaCO 3). The kinetics of ,Ca, dissolution for various particle size fractions of ground steel slag and concrete ,were, measured in batch ...

Treatment of Pesticide Wastewater by Physicochemical and ...
Treatment of Pesticide Wastewater by Physicochemical and ...

complex organic materials dissolved in ,water,. The pH level of the ,waste,-,water, was set by H 2SO 4 (6 N). After the setting of the pH level, steady amounts of of KMnO 4 (250 mg/L) and polyelectrolyte (10 mg/L) ,were used, to determine the ,Ca,(,OH,) ,2, dose (from 250 to 2500 mg/L). After determining the optimum ,Ca,(,OH,) ,2, dose varying doses of KMnO 4 ...

Journal of Physical Chemistry - Longdom
Journal of Physical Chemistry - Longdom

equivalence point while ,2,-propanol+ ,water, showed maximum effect as compared to the equivalence point in pure ,water, at 293 ± 1K and 343 ± 1K. However the dissolution of ,Ca,(,OH,) ,2, was decreased slightly by increasing temperatures. The reversed trend in dissolution against temperature, in ,Ca,(,OH,) ,2, was found due to its lattice energy. The

Damage of EPS and cell structures and improvement of high ...
Damage of EPS and cell structures and improvement of high ...

[,Ca,(,OH,) ,2,].16 However, the sodium ions can reduce the soil permeability and increase the soil salinity and sodicity,17,18 and lead to soil deterioration. NaOH pretreatment limits long-term biosolids use in agriculture, and also involves higher costs. ,Ca,(,OH,) ,2, relies on the same working principle but is …

ADSORPTIVE REMOVAL OF HAZARDOUS INORGANIC ELEMENTS …
ADSORPTIVE REMOVAL OF HAZARDOUS INORGANIC ELEMENTS …

taken along with 8 g of ,Ca,(,OH,),2, in a juice mixer and crushed into small particles to make a suspension, which was then transferred into a beaker. After adding a substantial amount of deionized ,water,, the suspension was stirred for 24 h at about 200 rpm at room temperature in …

Removal of Boron from Wastewater by Precipitation of a ...
Removal of Boron from Wastewater by Precipitation of a ...

Synthetic ,waste, solutions with characteristics similar to those of industrial ,waste were, prepared. Boric ,acid, and sulfuric ,acid were, added to deionized ,water, at initial concentrations of 0.7 g L 1of boron and 50 g L of sulfuric ,acid,. The experiments ,were, carried out in a ,2,…

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

No liquid ,waste,, and; A minimal volume of hazardous solid ,waste,. Process Description. 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

Treatment of Pesticide Wastewater by Physicochemical and ...
Treatment of Pesticide Wastewater by Physicochemical and ...

complex organic materials dissolved in ,water,. The pH level of the ,waste,-,water, was set by H 2SO 4 (6 N). After the setting of the pH level, steady amounts of of KMnO 4 (250 mg/L) and polyelectrolyte (10 mg/L) ,were used, to determine the ,Ca,(,OH,) ,2, dose (from 250 to 2500 mg/L). After determining the optimum ,Ca,(,OH,) ,2, dose varying doses of KMnO 4 ...

Using CaO- and MgO-rich industrial waste streams for ...
Using CaO- and MgO-rich industrial waste streams for ...

Ca,(,OH,) ,2, and CaO from steel slag or concrete ,waste, can be dissolved in ,water, and reacted with CO ,2, in ambient air to capture and store carbon safely and permanently in the form of stable carbonate minerals (CaCO 3). The kinetics of ,Ca, dissolution for various particle size fractions of ground steel slag and concrete ,were, measured in batch ...

ORIGINAL ARTICLE Evaluation of waste chicken feathers as ...
ORIGINAL ARTICLE Evaluation of waste chicken feathers as ...

the peptone from ,waste, chicken feathers by ,acid, hydroly-sis and to elucidate the usability of the obtained chicken ... Feathers ,were, washed with deionized ,water, and dried in ... NaOH, KOH, Mg(,OH,) ,2, and ,Ca,(,OH,) ,2 were used, for the neutralization of hydrolysates. At the end of …

Physico-Chemical Studies of Enamel Cover Industry Wastewater
Physico-Chemical Studies of Enamel Cover Industry Wastewater

(Fig. 1). During chemical refining, commercial ,Ca,(,OH,),2, and polyelectrolyte ,were used,. ,Ca,(,OH,) ,2, solution ,used, was prepared by 20 g of ,Ca,(,OH,) ,2, + 1000 mL of ,water,; while the poly electrolyte solution was prepared 10 g of polyelectrolyte + 1000 mL of ,water,. Vol. 21, No. ,2, (2009) ,Physico-Chemical Studies of Enamel Cover Industry Wastewater, 965

Method for treating heavy metal containing waste water by ...
Method for treating heavy metal containing waste water by ...

A heavy metal containing ,waste water, (low concentration and high concentration) is maintained at pH=8-11.5 by adding NH 4 ,OH,, ,Ca,(,OH,) ,2, and NAOH. Then the acornic ,acid, is added into the ,waste water,, and then, ,Ca, + + ions singly or together with other divalent cations are added by 50 ppm.

Kornkanok Watcharathamrongkul Bunjerd Jongsomjit and ...
Kornkanok Watcharathamrongkul Bunjerd Jongsomjit and ...

tion of stable emulsion and a large amount of ,waste water,. Alternatively, the heterogeneous ... The ,acid, value of the soybean oil is 0.,2, mg KOH/1 g oil with 0.1 wt% of ,water, content. Absolute ethanol of 99.9% ... CaO and ,Ca,(,OH,) ,2 were, purchased from Ajax Finechem (New South Wales, Australia). Limestone was obtained from a local

Removal of Boron from Wastewater by Precipitation of a ...
Removal of Boron from Wastewater by Precipitation of a ...

Synthetic ,waste, solutions with characteristics similar to those of industrial ,waste were, prepared. Boric ,acid, and sulfuric ,acid were, added to deionized ,water, at initial concentrations of 0.7 g L 1of boron and 50 g L of sulfuric ,acid,. The experiments ,were, carried out in a ,2,…

Solved: Reaction 1: Ca (s) + 2 H2O(l) → Ca(OH)2 (s) + H2 ...
Solved: Reaction 1: Ca (s) + 2 H2O(l) → Ca(OH)2 (s) + H2 ...

7. Empty the buret and rinse it with DI ,water,. Discard the titration ,waste, and excess ,acid, in the ,acid waste, bin. Discard remaining filtrate in the caustic (basic) ,waste, bin. 8. Store the buret in an open, inverted position on the clamp. Rinse all other glassware thoroughly with tap ,water, and return the equipment to the appropriate cupboard or ...

Damage of EPS and cell structures and improvement of high ...
Damage of EPS and cell structures and improvement of high ...

[,Ca,(,OH,) ,2,].16 However, the sodium ions can reduce the soil permeability and increase the soil salinity and sodicity,17,18 and lead to soil deterioration. NaOH pretreatment limits long-term biosolids use in agriculture, and also involves higher costs. ,Ca,(,OH,) ,2, relies on the same working principle but is …

Solved: Reaction 1: Ca (s) + 2 H2O(l) → Ca(OH)2 (s) + H2 ...
Solved: Reaction 1: Ca (s) + 2 H2O(l) → Ca(OH)2 (s) + H2 ...

7. Empty the buret and rinse it with DI ,water,. Discard the titration ,waste, and excess ,acid, in the ,acid waste, bin. Discard remaining filtrate in the caustic (basic) ,waste, bin. 8. Store the buret in an open, inverted position on the clamp. Rinse all other glassware thoroughly with tap ,water, and return the equipment to the appropriate cupboard or ...

Kornkanok Watcharathamrongkul Bunjerd Jongsomjit and ...
Kornkanok Watcharathamrongkul Bunjerd Jongsomjit and ...

tion of stable emulsion and a large amount of ,waste water,. Alternatively, the heterogeneous ... The ,acid, value of the soybean oil is 0.,2, mg KOH/1 g oil with 0.1 wt% of ,water, content. Absolute ethanol of 99.9% ... CaO and ,Ca,(,OH,) ,2 were, purchased from Ajax Finechem (New South Wales, Australia). Limestone was obtained from a local

Physico-Chemical Studies of Enamel Cover Industry Wastewater
Physico-Chemical Studies of Enamel Cover Industry Wastewater

(Fig. 1). During chemical refining, commercial ,Ca,(,OH,),2, and polyelectrolyte ,were used,. ,Ca,(,OH,) ,2, solution ,used, was prepared by 20 g of ,Ca,(,OH,) ,2, + 1000 mL of ,water,; while the poly electrolyte solution was prepared 10 g of polyelectrolyte + 1000 mL of ,water,. Vol. 21, No. ,2, (2009) ,Physico-Chemical Studies of Enamel Cover Industry Wastewater, 965

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