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Acidity of sulfuric 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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Acidity of sulfuric acid wastewater
Treatment of wastewater containing citric acid and ...
Treatment of wastewater containing citric acid and ...

Wastewater, generated from ship bilge cleaning and containing up to 10% ,citric acid, or up to 5% triethanolamine, or mixtures thereof, can thus be subjected to UV/H 2 O 2 treatment with ferrous ion in a concentration thereof of about 20 to about 100 ppm, without forming chelates of iron and other heavy metals with ,citric acid, or with triethanolamine, to decompose up to 90% or more of the ,citric, ...

Feasibility study and process optimization of citric acid ...
Feasibility study and process optimization of citric acid ...

This paper studied the feasibility of using PSB in citric acid wastewater treatment. Some important factors which influence the pollutants removal efficiency and biomass were also examined to...

Improving the dewaterability of citric acid wastewater ...
Improving the dewaterability of citric acid wastewater ...

Most importantly, treatment of citric acid wastewater sludge with 84 mg O3/g DS and 12.5 mg/g DS H2O2 led to the preservation of the nutrient elements nitrogen, phosphorus, and potassium in the ...

Citric Acid 50% - Treatment Technology
Citric Acid 50% - Treatment Technology

Citric Acid is used as a, cleaning solution for membrane filters, in wastewater and water treatment. Citric acid is also an excellent chelating agent, binding metals. It is also used to remove lime scale from boilers and evaporators. CLICK HERE TO DOWNLOAD THE SDS SHEET

Treatment of recalcitrant wastewater from ethanol and ...
Treatment of recalcitrant wastewater from ethanol and ...

Laboratory-scale experiments were performed to develop a procedure for biological treatment of recalcitrant anaerobic industrial effluent (from ethanol and citric acid production) using first the microalga Chlorella vulgaris followed by the macrophyte Lemna minuscula. This recalcitrant dark-colored wastewater, containing high levels of organic ...

Treatment of wastewater containing citric acid and ...
Treatment of wastewater containing citric acid and ...

It has been found that ,wastewater, from ship bilge cleaning operations, containing relatively high concentrations ,of citric acid, and triethanolamine can be successfully treated to decompose more than 90% of both the ,citric acid, and triethanolamine, by ,treatment, of the ,wastewater, with ultraviolet light and hydrogen peroxide, with the addition of minor amounts of ferrous ion as catalyst to the ,wastewater,.

Citric Acid - accepta.com
Citric Acid - accepta.com

Citric acid is a weak organic acid. It is a natural preservative and excellent chelating agent. It is used to remove limescale from boilers and evaporators and can be used to soften water...

Citric Acid - Accepta - The Water Treatment Product Company
Citric Acid - Accepta - The Water Treatment Product Company

Citric acid is a weak organic acid. It is a natural preservative and excellent chelating agent. It is used to remove limescale from boilers and evaporators and can be used to soften water., Citric acid, is widely used as a pH adjusting agent in creams and gels and can be used as a successful alternative to nitric acid in passivation of stainless steel.

Improving the dewaterability of citric acid wastewater ...
Improving the dewaterability of citric acid wastewater ...

20/9/2018, · Fenton conditioning was a highly effective and affordable approach to improving the dewaterability of citric acid wastewater sludge while preserving the fertilizing properties. The optimal condition of Fenton treatment was, pH 5.0, H2 O 2 dose of 20 mg g −1 dry solids, and Fe 2+ dose of 80 mg g −1 dry solids.

Full-scale and laboratory-scale anaerobic treatment of ...
Full-scale and laboratory-scale anaerobic treatment of ...

This paper reviews the operation of a full-scale, fixed-bed digester treating a citric acid production wastewater with a COD:sulphate ratio of 3-4:1. Support matrix pieces were removed from the digester at intervals during the first 5 years of operation in order to quantify the vertical distribution of biomass within the digester.

Citric acid passivation ...waste treatment
Citric acid passivation ...waste treatment

There are a number of ways to treat this bath, depending on volume and volume of "other wastewater" treated. You can treat this as a batch, decrease the pH to 2 to weaken the bond between the chealtor and the metal(s), increase pH to the optimum pH range for the target metal, coagulate and floc.

Full recycling of citric acid wastewater through anaerobic ...
Full recycling of citric acid wastewater through anaerobic ...

Citric acid wastewater was treated by ana,erobic digestion, and air-stripping prior to reuse as process water for the next batch of citric acid fermentation with, calcium carbonate, addition at the start to control the pH of the medium.

Wastewater Treatment of Citric Acid by Emulsion Liquid ...
Wastewater Treatment of Citric Acid by Emulsion Liquid ...

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Citric acid passivation ...waste treatment
Citric acid passivation ...waste treatment

First of two simultaneous responses -- 2007 There are a number of ways to treat this bath, depending on volume and volume of "other wastewater" treated. You can treat this as a, batch, decrease the pH to 2 to weaken the bond between the chealtor and the metal (s), increase pH to the optimum pH range for the target metal, coagulate and floc.

High efficient treatment of citric acid effluent by ...
High efficient treatment of citric acid effluent by ...

1/1/2013, · Although, Chlorella, has been applied to treat some organic wastewaters, few reports have been presented using a combined high valuable biomass and treatment of CAE. This study will evaluate the potential, Chlorella, vulgaris in treating recalcitrant effluent of citric acid fermentation and the other valuable byproducts. 2.

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