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Farmland polluted by 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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Farmland polluted by acid wastewater
Disposal of Waste Battery Electrolyte by Neutralization ...
Disposal of Waste Battery Electrolyte by Neutralization ...

60 litres battery ,acid, was taken in 60 litres PVC drums. This drum was kept in 120 litres drum. Domestic water was used for cooling with flow of 5 LPM during ,neutralization of acid,. DM plant alkali was slowly added for ,neutralization,. Temperature of cooling water was maintain regularly and it was ensured that ,acid, temperature remain below 45-500C.

Experiment-3 Determination of Alkalinity From the Effluent ...
Experiment-3 Determination of Alkalinity From the Effluent ...

1. Rinse the burette with 0.02N Sulphuric ,acid, and discard the solution. 2. Fill the burette with 0.02N sulphuric ,acid, and adjust it to zero. 3. Pipette out 10 ml of sample and pour it into a 250 ml of conical flask. 4. Add few drops of phenolphthalein indicator to the contents of conical flask. The

Treatment of oilfield wastewater by combined process of ...
Treatment of oilfield wastewater by combined process of ...

A 300 mL wastewater based on the optimum conditions of electrolytic experiment was investigated in the 500 mL flask. The Fenton process consists of four stages: pH adjustment, oxidation, neutralization and sedimentation. Firstly, the pH of the treated wastewater was adjusted to 3.0 with sulphuric acid.

Treatment of Industrial Wastewater by Organic Wastes
Treatment of Industrial Wastewater by Organic Wastes

lead, manganese, nickel and iron. The ,experiment, was carried out on laboratory scale for different retention periods approximately for three months. The water chemistry of industrial ,wastewater, treatment process in the bioreactors is summarized below. pH The pH of input industrial ,wastewater, in the bioreactors was 5.58 and it increased up to 8 ...

Neutralization and Decontamination of Acid Leachates using ...
Neutralization and Decontamination of Acid Leachates using ...

Acid Neutralization, Curves for Red Mud The rapid ,acid neutralization, curve obtained for RM (Figure 1a) presented the typical shape of RM curves with different origin and composition (Snars et al.2004). It was characterized by a sud-den drop of pH from its initial pH = 9.3 …

Chemical Industry Wastewater Treatment Using Adsorption
Chemical Industry Wastewater Treatment Using Adsorption

solids increases during ,neutralization, of the ,wastewater, with ,acid,/ alkali during primary treatment. which adversely affects the ... the ,experiment, was terminated. The experiments were repeated with 5 g bentonite ... for ,wastewater, from H-,acid,. BP is effective for

Feasibility of Co-Treating Olive Mill Wastewater and Acid ...
Feasibility of Co-Treating Olive Mill Wastewater and Acid ...

Metal and phenol removal efficiencies: Focusing on the period with high SRB activity after the first HRT increase on day 246 (with limestone added to the bioreactor packed bed; see Fig. 5), the following was observed (Fig. 6b, c): (1) Fe, Al, and Cu, which were largely removed in the ,neutralization, step, remained at similar concentrations after passing through the bioreactor; (2) Zn, which was still present at relatively high concentrations in the nsAMD exiting the ,neutralization, …

Comparison of Alkaline Treatment of Lead Contaminated ...
Comparison of Alkaline Treatment of Lead Contaminated ...

wastewater precipitate (as hydroxides) and scavenge the lead ions from the wastewater. A possible disadvantage of neutralizing the acid wastewater with sodium hydrox-ide solution is an increase in total dissolved solids (TDS) concentration of the treated water owing to the formation of soluble sodium sulfate. Increase in TDS levels of the

(PDF) ANAEROBIC TREATMENT OF A PETROCHEMICAL WASTEWATER …
(PDF) ANAEROBIC TREATMENT OF A PETROCHEMICAL WASTEWATER …

During the process, two principal byproducts are formed, 4-formylbenzoic ,acid, and p-toluic ,acid, (6methylbenzoic ,acid,). These petrochemicals together with terephthalic, benzoic and acetic acids are found as the main organic pollutants in the wastewaters …

Dephosphorisation of Acidic Wastewater
Dephosphorisation of Acidic Wastewater

2.6.2 ,Acid, pickling ... 2.7 ,Neutralization, of ,wastewater, ... this ,experiment,. As Sandvik’s ,wastewater, greatly varies, in composition, pH and water flow, it was difficult to determine the amount of Polonite® needed to purify it to low enough levels of P.

Chemical Industry Wastewater Treatment Using Adsorption
Chemical Industry Wastewater Treatment Using Adsorption

solids increases during ,neutralization, of the ,wastewater, with ,acid,/ alkali during primary treatment. which adversely affects the ... the ,experiment, was terminated. The experiments were repeated with 5 g bentonite ... for ,wastewater, from H-,acid,. BP is effective for

Treatment of Industrial Wastewater by Organic Wastes
Treatment of Industrial Wastewater by Organic Wastes

lead, manganese, nickel and iron. The ,experiment, was carried out on laboratory scale for different retention periods approximately for three months. The water chemistry of industrial ,wastewater, treatment process in the bioreactors is summarized below. pH The pH of input industrial ,wastewater, in the bioreactors was 5.58 and it increased up to 8 ...

Neutralization and Decontamination of Acid Leachates using ...
Neutralization and Decontamination of Acid Leachates using ...

Acid Neutralization, Curves for Red Mud The rapid ,acid neutralization, curve obtained for RM (Figure 1a) presented the typical shape of RM curves with different origin and composition (Snars et al.2004). It was characterized by a sud-den drop of pH from its initial pH = 9.3 …

Experimental Research on Wastewater Reuse Technology of ...
Experimental Research on Wastewater Reuse Technology of ...

Wastewater, reuseirculating cooling water, C , Decrease of hardness and desalination, ... By means of decrease of hardness, ,neutralization, and desalination union technology, the drained ,wastewater, of industrial circulating cooling water system can be treated. The purified water ... and sought the best ,experiment, , conditions[4].

Dephosphorisation of Acidic Wastewater
Dephosphorisation of Acidic Wastewater

2.6.2 ,Acid, pickling ... 2.7 ,Neutralization, of ,wastewater, ... this ,experiment,. As Sandvik’s ,wastewater, greatly varies, in composition, pH and water flow, it was difficult to determine the amount of Polonite® needed to purify it to low enough levels of P.

Experiment-3 Determination of Alkalinity From the Effluent ...
Experiment-3 Determination of Alkalinity From the Effluent ...

1. Rinse the burette with 0.02N Sulphuric ,acid, and discard the solution. 2. Fill the burette with 0.02N sulphuric ,acid, and adjust it to zero. 3. Pipette out 10 ml of sample and pour it into a 250 ml of conical flask. 4. Add few drops of phenolphthalein indicator to the contents of conical flask. The

PROCESS MODEL-BASED CONTROL OF WASTEWATER pH by IN ...
PROCESS MODEL-BASED CONTROL OF WASTEWATER pH by IN ...

nonlinear, multi-,acid, plus common ion salt ,wastewater, flow-through pH ,neutralization, process is demonstrated with a Process Model-Based Control (PMBC) strategy. The reduced phenomenological model of the "expert" controller considers the ,wastewater, as a single fictitious ,acid, of unknown concentration and of unknown Gibbs free energy of dissociation.

Assessment of Neutralization of Alkaline Cement Industrial ...
Assessment of Neutralization of Alkaline Cement Industrial ...

wastewater,. This efficient tool of science can be utilized as an alternative to the traditional ,acid neutralization, method for treatment of alkaline effluent from industries. Keywords: Alkaliphilic, ,neutralization,, ,waste water,, high pH _____ Introduction

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