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Sources of acidic arsenic containing 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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Sources of acidic arsenic containing wastewater
Adsorption and Treatment of Organic Contaminants using ...
Adsorption and Treatment of Organic Contaminants using ...

adsorption, on ,activated carbon, is especially vital because it is the dissolved and, difficult-to-decompose organic substances in particular that can be selectively removed ,by activated carbon,. The removal of pollutants from aqueous waste stream by ,adsorption, unto granular ,activated carbon, (GAC) in fixed beds is an important industrial ,wastewater

Preparation and characterization of activated carbon ...
Preparation and characterization of activated carbon ...

Preparation and characterization of ,activated carbon, developed from cotton cloth residue ,activated, with phosphoric ,acid,: ,adsorption, of clofibric ,acid, ... of carbamazepine, clofibric ,acid,, diclofenac and caffeine in ,wastewater, effluent of 463, 772, 50 and ... remains poorly investigated. The interest in ,activated carbon, …

Adsorption Isotherms of Benzoic Acid onto Activated Carbon ...
Adsorption Isotherms of Benzoic Acid onto Activated Carbon ...

The ,adsorption isotherms of benzoic acid, onto granular ,activated carbon, at varying solution temperatures (25−55 °C) and pHs (2−8) from aqueous solution were experimentally determined by batch tests. The Tóth model was found to fit all of the experimental data well. A series of column tests were performed to determine the breakthrough curves with varying bed depths (3−6 cm) and water ...

Preparation and characterization of activated carbon ...
Preparation and characterization of activated carbon ...

Preparation and characterization of ,activated carbon, developed from cotton cloth residue ,activated, with phosphoric ,acid,: ,adsorption, of clofibric ,acid, ... of carbamazepine, clofibric ,acid,, diclofenac and caffeine in ,wastewater, effluent of 463, 772, 50 and ... remains poorly investigated. The interest in ,activated carbon, …

Adsorption of aromatic organic acids onto high area ...
Adsorption of aromatic organic acids onto high area ...

25/8/2006, · ,Adsorption, of aromatic organic acids: benzoic ,acid, (BA), salicylic ,acid, (SA), p-aminobenzoic ,acid, (pABA) and nicotinic ,acid, (NA), onto high area ,activated carbon, cloth from solutions in 0.4 M H(2)SO(4), in water at natural pH, in 0.1 M NaOH and also from solutions having pH 7.0 were studied by in situ UV-spectroscopic technique.

Adsorption / Active Carbon - Lenntech
Adsorption / Active Carbon - Lenntech

Activated carbon adsorption,. ,Adsorption, is a process where a solid is used for removing a soluble substance from the water. In this process active ,carbon, is the solid. ,Activated carbon, is produced specifically so as to achieve a very big internal surface (between 500 - 1500 m 2 /g). This big internal surface makes active ,carbon, ideal for ...

Adsorption of acetic acid and hydrogen sulfide using NaOH ...
Adsorption of acetic acid and hydrogen sulfide using NaOH ...

Excessive exposure to hydrogen sulfide (H 2 S) and acetic ,acid, (CH 3 COOH) gases is extremely dangerous in a confined space. An effective indoor air pollutant removal porous ,carbon, filter was developed using NaOH impregnated on ,activated carbon, (NaOH/AC) for the ,adsorption, of H 2 S and CH 3 COOH. ,Activated carbon, (NaOH/AC) filter was characterized using various methods, indicating …

Adsorption of Formaldehyde on Treated Activated Carbon and ...
Adsorption of Formaldehyde on Treated Activated Carbon and ...

Amino Group Introduction in ,Activated Carbon, Through ,Acid, Treatment (AC-1) 7 The concentrated sulfuric ,acid, and nitric ,acid, treatment introduced nitro groups onto the surface of the ,activated carbon,. The nitro groups were reduced by the reaction of powdered iron and hydrochloric ,acid, …

Adsorption of aromatic organic acids onto high area ...
Adsorption of aromatic organic acids onto high area ...

25/8/2006, · ,Adsorption, of aromatic organic acids: benzoic ,acid, (BA), salicylic ,acid, (SA), p-aminobenzoic ,acid, (pABA) and nicotinic ,acid, (NA), onto high area ,activated carbon, cloth from solutions in 0.4 M H(2)SO(4), in water at natural pH, in 0.1 M NaOH and also from solutions having pH 7.0 were studied by in situ UV-spectroscopic technique.

ADSORPTION OF ACID BLUE 1 ON ACTIVATED CARBON …
ADSORPTION OF ACID BLUE 1 ON ACTIVATED CARBON …

the ,carbon, and it decreased with the increase in ,adsorption,/activation temperature. Keywords: ,Activated carbon,; ,Acid, blue 1; ,Adsorption,; Characterization. INTRODUCTION Color is a visible pollution. A slight coloration of a water source could make it unacceptable to consumers though it may not be toxic. The source of

Decolorization of wastewater by adsorption on activated ...
Decolorization of wastewater by adsorption on activated ...

DECOLORIZATION OF ,WASTEWATER, BY ,ADSORPTION, ON ,ACTIVATED CARBON, IN A ... , p.1499-1514 G.M. Walker and L.R. Weatherley, “,Adsorption of Acid, Dyes on to Granular ,Activated Carbon, …

Adsorption of lead ethylenediaminetetraacetic acid and ...
Adsorption of lead ethylenediaminetetraacetic acid and ...

ethylenediaminetetraacetic acid, could be achieved using ,activated carbon adsorption,. The details related to the effect of pH and pollutants’ concentration on the overall ,adsorption, efficiency, as reported in the present work, would be of much use for an effective ,carbon adsorption, process design for the treatment of respective wastewaters.

Estimation of Acid Red 114 adsorption using Ceiba ...
Estimation of Acid Red 114 adsorption using Ceiba ...

Fig. 1 Structure ,of Acid, Red -114 2.2 Preparation of ,Activated Carbon,: Ceiba Pentandra wood waste (CPAC) was used as a precursor for the preparation of ,activated carbon, using phosphoric ,acid, activation method. The wood was cut into small pieces of 2 to 3 cm in size, dried in the sun light for

(PDF) Adsorption of Acetic acid onto Activated Carbons ...
(PDF) Adsorption of Acetic acid onto Activated Carbons ...

This is because ,adsorption, of the acetic ,acid, on the studied ,activated carbon, is acetic ,acid, has a high propensity to react more with compounds favourable or not. If the exponent n = 1/bF lies between 1 and tending to be basic. In other hand there are very great 10, the ,adsorption, is favorable23.

Efficient adsorption of benzoic acid from aqueous solution ...
Efficient adsorption of benzoic acid from aqueous solution ...

The effect of solution initial pH on benzoic ,acid adsorption, was studied at a pH range of 2–12 at 20 °C. The pH of the solution was carefully adjusted by adding 0.1 mol/L HCl or 0.1 mol/L NaOH solution and was monitored by a PHC-3C pH meter. The benzoic ,acid, concentration was fixed at 1,000 mg/L and the dosage of ,activated carbon, was 0.10 g.

Adsorption of Safranin-T from wastewater using waste ...
Adsorption of Safranin-T from wastewater using waste ...

Adsorption, of Safranin-T from ,wastewater, using waste materials— ,activated carbon, and ,activated, rice husks Vinod K. Gupta a , ∗ , Alok Mittal b , Rajeev Jain c , Megha Mathur c , Shalini Sikarwar c

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