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Neutralization of acid wastewater can be divided into

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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Neutralization of acid wastewater can be divided into
Photocatalytic Degradation of Wastewater by Molecularly ...
Photocatalytic Degradation of Wastewater by Molecularly ...

27/1/2020, · Photocatalytic ,Degradation, of ,Wastewater, by Molecularly Imprinted ... is a widely accepted capturing ,agent, for holes 28. 0.1 ... surfaces: photosensitized ,degradation, of a textile azo dye, ,acid, ...

Oxidative Degradation of Nalidixic Acid by Nano-magnetite ...
Oxidative Degradation of Nalidixic Acid by Nano-magnetite ...

Here, we explored the oxidative capacity of nano-magnetite (Fe3O4) having ∼12 nm particle size, to promote heterogeneous Fenton-like reactions for the removal of nalidixic ,acid, (NAL), a recalcitrant quinolone antibacterial ,agent,. Results show that NAL was adsorbed at the surface of magnetite and was efficiently degraded under oxic conditions.

Heterogeneous Catalytic Process for Wastewater Treatment ...
Heterogeneous Catalytic Process for Wastewater Treatment ...

13/6/2019, · Electrocatalysis is mainly used in the treatment of organic ,wastewater,, ,degradation, of chromium-containing ,wastewater,, desulfurization of flue gas and raw coal, the simultaneous removal of NOx and SO 2, and the reduction of carbon dioxide and nitrogen.

Mechanisms of Peracetic Acid Inactivation of Microbes
Mechanisms of Peracetic Acid Inactivation of Microbes

Peracetic acid (PAA) is a highly effective biocide that has gained in popularity over the past several years as a chlorine alternative for wastewater disinfection 1-3 . Increased interest in PAA is driven by several desirable characteristics,

Environmental fate and microbial degradation of ...
Environmental fate and microbial degradation of ...

3 Microbial ,degradation, of APCAs during ,wastewater, treatment and in the environment. 4 ,Degradation, of APCAs by pure microbial cultures. ... As in the case of rhizoferrin, the tying together of two citric ,acid, residues provides an iron-binding ,agent, much more powerful than citrate alone .

Mechanisms of Peracetic Acid Inactivation of Microbes
Mechanisms of Peracetic Acid Inactivation of Microbes

Peracetic acid (PAA) is a highly effective biocide that has gained in popularity over the past several years as a chlorine alternative for ,wastewater, disinfection 1-3 . Increased interest in PAA is driven by several desirable characteristics,

pH - Wikipedia
pH - Wikipedia

In chemistry, ,pH, (/ p iː ˈ eɪ tʃ /, denoting 'potential of hydrogen' or 'power of hydrogen') is a scale used to specify the acidity or basicity of an aqueous solution.,Acidic, solutions (solutions with higher concentrations of H + ions) are measured to have lower ,pH, values than basic or alkaline solutions.. The ,pH, scale is logarithmic and inversely indicates the concentration of hydrogen ...

Pre-treatment of acetic acid from food processing ...
Pre-treatment of acetic acid from food processing ...

biodegradable substances [42]. In case of acetic acid contaminated ,wastewater, from food processing (,Wastewater, was brought from the process of pickling in Thailand) decomposition, the role of H 2O2, Fe 2+ ions, initial pH and reaction time are important in the Fenton process; however are has not been investigated yet. Therefore, the primary

Biodegradation of EDTA
Biodegradation of EDTA

Biodegradation, of EDTA The chelating agent ethylenediaminetetraacetate (EDTA) is not, degraded, by conventional biological and physicochemical methods for the treatment of, wastewater, and the purification of drinking water. Of the measurable organic compounds it is the one present at the highest concentration in many surface …

Identification and Physiological Characteristics of ...
Identification and Physiological Characteristics of ...

wastewater, of the sugar factory and has a potential role as a bioremediation ,agent, for the waste. The method used in this study is the experimental, by observing several environmental parameters as indicators, among others, BOD, COD, TSS, and pH. The results of this study found two types of dominant bacteria, i.e., Staphylococcus aureus and Bacillus

Coagulation and Flocculation in Water and Wastewater ...
Coagulation and Flocculation in Water and Wastewater ...

Coagulation and Flocculation in Water and ,Wastewater, Treatment. Coagulation and flocculation are an essential part of drinking water treatment as well as ,wastewater, treatment. This article provides an overview of the processes and looks at the latest thinking. …

Textile dye wastewater characteristics and constituents of ...
Textile dye wastewater characteristics and constituents of ...

27/11/2018, · Sulphuric acid is a strong acid, which is widely used for pH control purposes as a neutralising ,agent,. Sodium lauryl sulphate is used in textile ,wastewater, constituents as a scouring ,agent, (Verma et al. 2012). Urea is one of the main chemicals applied in the printing process of the reactive dyes, causing a high pollutant load.

US5171452A - Phosphoric acid wastewater treatment - Google ...
US5171452A - Phosphoric acid wastewater treatment - Google ...

Phosphoric acid ,wastewater, treatment to substantially eliminate discharge of contaminants to the environment. Acid pond water from conventional wet-phosphoric acid manufacturing is replaced by gypsum pond water having a pH closely matching that of the surroundings. Essentially all fluorides are insolubilized and substantially all phosphoric acid is recovered, minimizing loss to the environment.

Aqueous photochemical degradation of mefenamic acid and ...
Aqueous photochemical degradation of mefenamic acid and ...

In this study, photochemical degradation of two emerging pharmaceutical chemicals,, mefenamic acid (MF), and, triclosan, (TCS), was investigated to clarify the role of treated wastewater effluent matrices on their environmental photolysis.

Removal of Organics and Degradation Products from ...
Removal of Organics and Degradation Products from ...

The treatment of a pharmaceutical ,wastewater, resulting from the production of an antibacterial drug (nalidixic acid) was investigated employing a membrane bioreactor (MBR) integrated with either ozonation or UV/H2O2 process. This was achieved by placing chemical oxidation in the recirculation stream of the MBR.

US5171452A - Phosphoric acid wastewater treatment - Google ...
US5171452A - Phosphoric acid wastewater treatment - Google ...

Treated ,acid, process water (PNAPW) with a pH of about 3 to 4.5, and fluorides of about 20-40 ppm F, is suitable for use in wet rock grinding, so a side stream is conveniently so utilized. According to this invention gypsum filter cakes from ,phosphoric acid, plant operations undergo a first filter cake wash (FIG.

Heterogeneous Catalytic Process for Wastewater Treatment ...
Heterogeneous Catalytic Process for Wastewater Treatment ...

13/6/2019, · The mechanisms of heterogeneous catalytic oxidation ,degradation, of pollutants in ,wastewater, were also discussed. ... as the reducing ,agent, and polyvinylpyrrolidone as the protecting ,agent,. Then, an aqueous solution of urea and variable quantities of Fe 2 ... Stearic acid ,degradation

Identification and Physiological Characteristics of ...
Identification and Physiological Characteristics of ...

wastewater, of the sugar factory and has a potential role as a bioremediation ,agent, for the waste. The method used in this study is the experimental, by observing several environmental parameters as indicators, among others, BOD, COD, TSS, and pH. The results of this study found two types of dominant bacteria, i.e., Staphylococcus aureus and Bacillus

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