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How to neutralize acid wastewater in industry

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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How to neutralize acid wastewater in industry
Industrial wastewater treatment - Wikipedia
Industrial wastewater treatment - Wikipedia

Industrial wastewater treatment, describes the processes used for treating ,wastewater, that is produced by industries as an undesirable by-product. After treatment, the treated industrial ,wastewater, (or effluent) may be reused or released to a sanitary sewer or to a surface water in the environment.. Most industries produce some ,wastewater,.Recent trends have been to minimize such production or ...

Degradation of polyvinyl alcohol (PVA) by UV/chlorine ...
Degradation of polyvinyl alcohol (PVA) by UV/chlorine ...

1/11/2017, · In this study, the degradation efficiency ,of PVA, greatly increased in ,acidic conditions, and decreased in alkaline ,conditions,. After 4 min (UV fluence, F = 624 mJ/cm 2 ), the level ,of PVA, at pH 4, 7, and 10 was reduced by 100%, 50%, and 10%, respectively, and the degradation rate was also much higher in ,acidic, condition ( Fig. 4 ).

KR100783754B1 - The process & equipments pva wastewater ...
KR100783754B1 - The process & equipments pva wastewater ...

The configuration of the present invention is a ,treatment, method for treating ,wastewater, containing a high concentration ,of PVA, using the salting method and activated sludge method, the step of adjusting the pH to cause the salting reaction by adjusting the pH of the separated high concentration ,PVA wastewater, in a pH adjustment tank Wow; Thereafter injecting boric acid into the ,PVA wastewater, eluted in the above process in the flocculation reactor and injecting boric acid into the ,PVA, ...

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 ...

An Efficient Biotreatment Process for Polyvinyl Alcohol ...
An Efficient Biotreatment Process for Polyvinyl Alcohol ...

PVA, (Polyvinyl alcohol) is completely degraded and utilized by non-ubiquitous microorganisms as a sole source of carbon. ,PVA, containing effluent treatments are not preferred because of high cost.

Wastewater treatment and reclamation: A review of pulp and ...
Wastewater treatment and reclamation: A review of pulp and ...

Iron, products. ,Iron, salts such as ferric chloride and ferrous sulfate are often used as coagulants for ,wastewater, treatment (Nandy et al. 2002; Agridiotis et al. 2007; Dhakhwa et al. 2012). The ion Fe 3+ ion is similar to Al 3+ in terms of valence and its strong tendency to complex with OH – ions.

PVA waste water treatment-Enterprise Dynamic-Qingdao ...
PVA waste water treatment-Enterprise Dynamic-Qingdao ...

Wet oxidation is a high-level oxidation ,treatment, of high concentration of biodegradable organic ,wastewater,. It refers to oxidation of organic pollutants to oxygen or air at high temperature (125-320 ℃ ) ,under, high pressure (0.5-20MPa) Organic small molecule material or its mineralized into carbon dioxide and water and other inorganic chemical processes.

Chemical Analyser and Online Monitoring of Potable Water
Chemical Analyser and Online Monitoring of Potable Water

Chemical analysis from PMA Ltd. Multi-stream capability (six maximum) to enable monitoring for the same chemical parameter at different ,concentration, ranges with a single analyser. Our complete online chemical analyser is capable of both process chemical analysis and the ,monitoring of potable water, and ,wastewater,.

New trends in removing heavy metals from industrial wastewater
New trends in removing heavy metals from industrial wastewater

1/10/2011, · 2.2. Industrial ,wastewater, sources. Industrial ,wastewater, streams ,containing, heavy metals are produced from different industries. Electroplating and metal surface treatment processes generate significant quantities of wastewaters ,containing, heavy metals (such as cadmium, zinc, lead, chromium, nickel, copper, vanadium, platinum, silver, and titanium) from a variety of applications.

Nitrification (Ammonia Oxidation) In Wastewater Treatment ...
Nitrification (Ammonia Oxidation) In Wastewater Treatment ...

A dissolved oxygen ,concentration, of 2 mg/L should be maintained. Keeping ,high, concentrations of substances known to be toxic to the autotrophs such as excessively ,high, ammonia concentrations or toxic heavy metal ions such as copper and chromium out of the ,wastewater, entering the system.

Iron (Fe) and water - Lenntech
Iron (Fe) and water - Lenntech

Iron, removal from water is mostly carried out in drinking water preparation, because mineral water contains ,high, amounts of ,iron, ions. These influence water colour, odour and turbidity. ,Iron, is present in all wastewaters. ,Iron, removal from ,wastewater, may be achieved by oxidation of binary ,iron, to tertiary ,iron,.

Characteristics of Waste-Water (Unit-I)
Characteristics of Waste-Water (Unit-I)

Characteristics of Waste-Water (Unit,-I) 1. ,Characteristics of Wastewater, Environmental Engineering Unit-I 2. Syllabus Introduction: to ,wastewater, –Sewage: • Definition of sewage, Necessity of sewage Treatment, Requirement of a sewage management System, Composition of Sewage • Characterization and Disposal: Characteristics of sewage: Composition, chemistry of sanitary sewage, B.O.D, C.OD ...

NEUTRALISATION OF ACIDIC EFFLUENTS WITH LIMESTONE
NEUTRALISATION OF ACIDIC EFFLUENTS WITH LIMESTONE

available and [H2SO4]b is the ,concentration, of acid in the bulk liquid (as mg CaCO3/l). For effluents with little or no heavy metals, the value of K is 2,45 x 10"3 min"1.cm"2; for effluents that contain significant quantities of ,iron,, a layer of Fe(OH)3 forms on the CaCO3 surfaces that causes K to decrease from the abovementioned value,

Recent trends and developments in Fenton processes for ...
Recent trends and developments in Fenton processes for ...

The Fenton process can be easily modified using zero-valent ,iron, (ZVI or Fe 0) as a heterogeneous catalyst, that has several advantages, such as low toxicity and cost, ,high, reactivity in •OH generation, easy separation from the liquid after treatment, and decreased leaching of ,iron, into the treated ,wastewater, (Bokare and Choi, 2014; Dulova et al., 2011).

Water Handbook - Condensate System Corrosion | SUEZ
Water Handbook - Condensate System Corrosion | SUEZ

The ,high, CO 2 ,concentration, depresses the pH, promoting ,acidic, attack of the metal oxide layers. An amine that is more likely to distribute into the steam, such as cyclohexylamine, is a better choice for the system described above. However, amines with a ,high, tendency to distribute into the steam are not always the best choice.

Heavy Metals in Contaminated Soils: A Review of Sources ...
Heavy Metals in Contaminated Soils: A Review of Sources ...

For example, very ,high concentration, of Cd, Pb, and Zn has been found in plants and soils adjacent to smelting works. Another major source of soil contamination is the aerial emission of Pb from the combustion of petrol ,containing, tetraethyl lead; this contributes substantially to the content of Pb in soils in urban areas and in those adjacent to major roads.

KR100783754B1 - The process & equipments pva wastewater ...
KR100783754B1 - The process & equipments pva wastewater ...

The present invention relates to a chemical and biological treatment method and apparatus for ,wastewater, containing ,PVA,, and an object thereof is to simply and economically treat ,wastewater, generated in various fields using ,PVA, as a raw material or a raw material containing ,PVA,. It's about making it happen. The configuration of the present invention is a treatment method for treating ...

Wastewater Technology Fact Sheet Chemical Precipitation
Wastewater Technology Fact Sheet Chemical Precipitation

vvEPA United States Environmental Protection Agency Office of Water Washington, D.C. EPA832-F-00-018 September 2000 ,Waste water Technology Fact Sheet Chemical Precipitation, DESCRIPTION Chemical precipitation is a widely used, proven technology for the removal of metals and other inorganics, suspended solids, fats, oils, greases, and some other organic substances (including …

(PDF) Degradation of PVA (polyvinyl alcohol) in wastewater ...
(PDF) Degradation of PVA (polyvinyl alcohol) in wastewater ...

Under acidic conditions,, the main viscosity decrease is achieved at the ratio of 1 molecule of O 3 t o >20 sub-units ,of PV, A. The solution becomes more ,acidic, following the production of formic ...

Advanced Oxidation Processes (AOPs) in Wastewater ...
Advanced Oxidation Processes (AOPs) in Wastewater ...

18/9/2015, · Consequently, Fe 3+ forms ,iron, sludge at typical water and ,wastewater, treatment conditions. The sludge needs to be separately disposed of, thus increasing the treatment complexity and operational costs. Of note, the generation of hydroxyl radicals during the Fenton reaction is the most effective only at an ,acidic, pH condition.

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