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Acid wastewater and limestone phenomenon

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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Acid wastewater and limestone phenomenon
Adsorption kinetics and isotherm of vanadium with melamine ...
Adsorption kinetics and isotherm of vanadium with melamine ...

The traditional methods for ,vanadium, recovery include chemical ,precipitation, with ammonium salt (Kang et al. 2008), ion exchange (Fan et al. 2013), and solvent extraction (Zeng & Cheng 2010; Li et al. 2013). However, the chemical ,precipitation, methods add ammonium salt, which may result in potential pollutants such as NH 4 +-N in the

Veolia Water Solutions & Technologies - Mining Technology ...
Veolia Water Solutions & Technologies - Mining Technology ...

Add value to the bottom line by ,treating, and minimizing sludge streams, to remove and/or recover suspended and dissolved constituents; Provide high-quality drinking water and ,wastewater, treatment even on remote mining sites; ,Acid, mine drainage treatment systems. AMDRO™ technology is a reverse osmosis (RO) ,process, for treatment of ,acid, mine ...

Industrial Wastewater Treatment Options For Inorganic ...
Industrial Wastewater Treatment Options For Inorganic ...

Industrial ,wastewater, treatment for inorganics can be as simple as settling or filtration and as complex as multistage chemical ,precipitation, or ion exchange processes. Technologies continue to evolve; the following methodology is recommended for selecting the best technology for each application, and several proven technologies have been shown to be effective for the water quality parameters most …

Characteristics and Treatment of Wastewater from the ...
Characteristics and Treatment of Wastewater from the ...

One of the most significant differences between ,acid, neutralization and the WAO ,process, is that the ,acid, components of spent sodas are removed but not destroyed, for example, phenols. In some cases, this entails the requirement of additional treatments for the acidification effluents, for example, gas ignition or methods for sulfur recovery.

The method of obtaining vanadium pentoxide
The method of obtaining vanadium pentoxide

To obtain ,wastewater, with low ,vanadium, concentration after ,vanadium, pentoxide hydrolytic ,precipitation,, prehydrolitic solutions are treated with alkaline earth metal hydroxide, and/or carbonate, and/or oxide at pH 3.6-4.9 and agitation for 20-60 min. Treatment may be carried out in pulp up to complete leaching using both clean alkaline earth metal compounds and natural materials or waste …

Adsorption kinetics and isotherm of vanadium with melamine ...
Adsorption kinetics and isotherm of vanadium with melamine ...

The traditional methods for vanadium recovery include chemical precipitation with ammonium salt (Kang et al. 2008), ion exchange (Fan et al. 2013), and solvent extraction (Zeng & Cheng 2010; Li et al. 2013). However, the chemical precipitation methods add ammonium salt, which may result in potential pollutants such as NH 4 +-N in the

[PDF] Vanadium Removal from Fuel Oil and Waste Water in ...
[PDF] Vanadium Removal from Fuel Oil and Waste Water in ...

A method ,for treating, fuel oil and ,waste water, of power plant is suggested which is including ,vanadium, elimination through contacting with humic ,acid, coated magnetic nano-adsorbent. The nano-adsorbent was modified with humic ,acid, (HA) as a compound having carboxyl, hydroxyl and amin functional groups. HA/Fe3O4 nanoparticles were prepared by a co-,precipitation, procedure and were characterized ...

TREATMENT BLENDS FOR REMOVING METALS FROM WASTEWATER …
TREATMENT BLENDS FOR REMOVING METALS FROM WASTEWATER …

A process for treating wastewater, comprising: measuring a flow rate of the wastewater in a pipeline feeding from an influent water tank; measuring a pH of the wastewater in the pipeline feeding from the influent water tank; administering a first pretreatment directly into the pipeline in an amount determined by a first calculation of the flow and the pH; mixing the wastewater with the first pretreatment by a first …

Standard Operating Procedure and Checklist of Minimal ...
Standard Operating Procedure and Checklist of Minimal ...

The utilization process involves mixing of vanadium sludge with water followed by neutralization of solution with hydro chloric acid. Then solution is filtered through filter press and mother

Industrial Wastewater Treatment Guide: Expanded Edition
Industrial Wastewater Treatment Guide: Expanded Edition

chemical feed to help facilitate the ,precipitation,, flocculation, ... ion exchange softening; a strong ,acid, cation exchange ,process, whereby resin is charged with a sodium ion, ... Not properly ,treating wastewater, can potentially harm the environment, human health, ...

Industrial Wastewater Treatment Guide: Expanded Edition
Industrial Wastewater Treatment Guide: Expanded Edition

chemical feed to help facilitate the ,precipitation,, flocculation, ... ion exchange softening; a strong ,acid, cation exchange ,process, whereby resin is charged with a sodium ion, ... Not properly ,treating wastewater, can potentially harm the environment, human health, ...

The method of obtaining vanadium pentoxide
The method of obtaining vanadium pentoxide

To obtain wastewater with low vanadium concentration after vanadium pentoxide hydrolytic precipitation, prehydrolitic solutions are treated with alkaline earth metal hydroxide, and/or carbonate, and/or oxide at pH 3.6-4.9 and agitation for 20-60 min. Treatment may be carried out in pulp up to complete leaching using both clean alkaline earth metal compounds and natural materials or waste products containing …

Characteristics and Treatment of Wastewater from the ...
Characteristics and Treatment of Wastewater from the ...

One of the most significant differences between ,acid, neutralization and the WAO ,process, is that the ,acid, components of spent sodas are removed but not destroyed, for example, phenols. In some cases, this entails the requirement of additional treatments for the acidification effluents, for example, gas ignition or methods for sulfur recovery.

Process for the utilization of vanadium from chromium ore ...
Process for the utilization of vanadium from chromium ore ...

A process for recovering vanadium from a sodium chromate solution obtained from the fusion of a chromium ore with alkali, which comprises: (a) adjusting the pH of the sodium chromate solution to 12-13 by addition of sodium hydroxide, adding calcium oxide, calcium hydroxide, calcium dichromate or calcium chromate to the sodium chromate solution to precipitate calcium vanadate (CO 5 (VO 4) 3 OH), (b) …

Standard Operating Procedure and Checklist of Minimal ...
Standard Operating Procedure and Checklist of Minimal ...

The utilization ,process, involves mixing of ,vanadium, sludge with water followed by neutralization of solution with hydro chloric ,acid,. Then solution is filtered through filter press and mother

Preparation of Vanadium Oxides from a Vanadium (IV) Strip ...
Preparation of Vanadium Oxides from a Vanadium (IV) Strip ...

Abstract: In the traditional ,vanadium precipitation process,, the use of ammonium salts can produce serious pollution problems from the ammonia ,waste-water, and the ammonia gas generated during the processing. In this reported study, an eco-friendly technology was investigated to prepare ,vanadium

Vanadium Removal from Fuel Oil and Waste Water in Power ...
Vanadium Removal from Fuel Oil and Waste Water in Power ...

A method for treating fuel oil and waste water of power plant is suggested which is including vanadium elimination through contacting with humic acid coated magnetic nano-adsorbent. The nano-adsorbent was modified with humic acid (HA) as a compound having carboxyl, hydroxyl and amin functional groups.

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