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Acid wastewater discharged from sulfuric acid plant

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 discharged from sulfuric acid plant
US7384573B2 - Compositions for wastewater treatment ...
US7384573B2 - Compositions for wastewater treatment ...

Methods and ,compositions for wastewater treatment,. The compositions comprise CaCO 3 , MgCO 3 , lanthanum chloride, or chitosan, and can be applied easily with conventional ,wastewater, treatment processes and equipments. The methods and compositions of the present invention significantly improve treatment efficiency and reduce amount of required chemical additives.

Evaluation of orange peel an industrial waste for the ...
Evaluation of orange peel an industrial waste for the ...

Evaluation of ,orange, peel, an industrial waste, ... fibers, pectic ,wastewater, treatment, papermaking, and the food industry (coffee and tea fermentations, fruit ... polygalacturonic ,acid, as a substrate at pH 4.8 and 40 °C. One unit of enzyme activity was defined as the amount of

US7384573B2 - Compositions for wastewater treatment ...
US7384573B2 - Compositions for wastewater treatment ...

Methods and ,compositions for wastewater treatment,. The compositions comprise CaCO 3 , MgCO 3 , lanthanum chloride, or chitosan, and can be applied easily with conventional ,wastewater, treatment processes and equipments. The methods and compositions of the present invention significantly improve treatment efficiency and reduce amount of required chemical additives.

Printing - Standard Methods for the Examination of Water ...
Printing - Standard Methods for the Examination of Water ...

orange, acidity’’ (pH 3.7) and ‘‘phenolphthalein’’ or total acidity (pH 8.3) regardless of the actual method of measurement. Standard Methods for the Examination of Water and ,Wastewater

Chemistry of Wastewater - The 5 Stages of Chemical ...
Chemistry of Wastewater - The 5 Stages of Chemical ...

EthyleneDiamineTetraAcetic ,acid, (N-CH2-CH2N) commonly known by its short form - EDTA is the most common titrant used during titration to understand the chemistry of ,wastewater,. The alternative Ethylenediaminetetraacetic ,acid, (H4y) when used like an EDTA proves less soluble while the Tetraneutralized solution (Na4Y) offers a highly alkaline solution as it is easily hydrolyzed.

Treatment of Wastewater by Underwater Discharge in Gas ...
Treatment of Wastewater by Underwater Discharge in Gas ...

are a promising technique in environmental remediation to treatment of ,wastewater,. ,Acid orange, 7organic dye solution was treated as a common ,wastewater, sample to elucidate chemical efficiency of bubbling gas types in discharge reactor. Experimental results showed that, oxygen bubbling gas effectively removed 84.35% ,of acid

Printing - Standard Methods for the Examination of Water ...
Printing - Standard Methods for the Examination of Water ...

orange, acidity’’ (pH 3.7) and ‘‘phenolphthalein’’ or total acidity (pH 8.3) regardless of the actual method of measurement. Standard Methods for the Examination of Water and ,Wastewater

Study on Decolorization of Methyl Orange Dye Wastewater by ...
Study on Decolorization of Methyl Orange Dye Wastewater by ...

The intensity of methyl ,orange, absorption peak (465nm) gradually weakened and disappeared by discharge with catalyst, the conjugated system composed of azo group and benzene in the molecular structure was destroyed, methyl ,orange, molecules were degraded effectively.

In vivo and in vitro efficient textile wastewater ...
In vivo and in vitro efficient textile wastewater ...

There were no obvious changes in the color ,of Acid Orange, 56 when the pH value was reduced using 0.1 M HCl. For ,Acid, Blue 40, a slight decoloration was observed when the pH value was about 1.23. In contrast to ,Acid, Blue 40 and ,Acid Orange, 56, ,Acid, Blue 93 is a weak ,acid, dye.

In vivo and in vitro efficient textile wastewater ...
In vivo and in vitro efficient textile wastewater ...

There were no obvious changes in the color ,of Acid Orange, 56 when the pH value was reduced using 0.1 M HCl. For ,Acid, Blue 40, a slight decoloration was observed when the pH value was about 1.23. In contrast to ,Acid, Blue 40 and ,Acid Orange, 56, ,Acid, Blue 93 is a weak ,acid, dye.

Water | Free Full-Text | Synthesis and Characterization of ...
Water | Free Full-Text | Synthesis and Characterization of ...

AMA Style. Umar A, Khan MS, Alam S, Zekker I, Burlakovs J, Rubin SSd, Bhowmick GD, Kallistova A, Pimenov N, Zahoor M. Synthesis and Characterization of Pd-Ni Bimetallic Nanoparticles as Efficient Adsorbent for the Removal ,of Acid Orange, 8 Present in ,Wastewater,.

Electrochemical Oxidation of Acid Brown 98 using 0.3 0.7O2 ...
Electrochemical Oxidation of Acid Brown 98 using 0.3 0.7O2 ...

Wastewater from the textile industry characteristically inherits a mixture of suspended particles, chemical oxygen demand (COD), acidity and color [3] . It has been reported that insoluble dyes causes residual color which is highly resistive to biological action [4].

Treatment of azo dye Acid Orange 7 containing wastewater ...
Treatment of azo dye Acid Orange 7 containing wastewater ...

see more details ,of Acid Orange, 7 (AO7) containing ,wastewater wastewater, Subject Category: Commodities and Products see more details by ,up-flow constructed wetland, (UFCW) at different AO7 concentrations, hydraulic retention retention Subject Category: Properties

Acid mine drainage - Wikipedia
Acid mine drainage - Wikipedia

Acid mine drainage,, ,acid, and metalliferous drainage, or ,acid, rock drainage is the outflow of acidic water from metal mines or coal mines. ,Acid, rock drainage occurs naturally within some environments as part of the rock weathering process but is exacerbated by large-scale earth disturbances characteristic of mining and other large construction activities, usually within rocks containing an abundance of sulfide minerals. Areas where the earth has been disturbed may create ,acid, …

MASS BALANCES MODELLING OVER WASTEWATER TREATMENT PLANTS III
MASS BALANCES MODELLING OVER WASTEWATER TREATMENT PLANTS III

WASTEWATER, TREATMENT PLANTS III Report to the ... (PAOs), the steady state mixed weak ,acid,/base chemistry part of the AD model was extended to include three phases (aqueous-gas- ... University of ,Orange, Free State Gratitude is expressed to the Civil Engineering workshop technicians, Charles Nicholas, ...

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