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Degradation of acid dye wastewater with high salinity

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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Degradation of acid dye wastewater with high salinity
Environment - ASTM International
Environment - ASTM International

STP14119S: ,Sulfur, Polymer Cement, a Final Waste form for Radioactive and Hazardous Wastes - 01 January 1996 STP14120S : Lab-Scale Tests on ISV Vapor Transport Phenomena - 01 January 1996 STP14121S : Mixed Waste Solidification Testing on Polymer and Cement-Based Waste forms in Support of Hanford's WRAP 2A Facility - 01 January 1996

Reaction kinetics of waste sulfuric acid using H2O2 ...
Reaction kinetics of waste sulfuric acid using H2O2 ...

waste ,sulfuric acid, were organic compounds and the components were extremely complicated. Therefore, COD was used to evaluate the content of organic com-pounds in waste ,sulfuric acid,. The COD value in waste ,sulfuric acid, was about 1.7 × 105–2.5 × 105 mg/L and the concentration of ,sulfuric acid, was about 89–93 wt%. Activated carbon

What Is Sulfuric Acid Titration?
What Is Sulfuric Acid Titration?

What Is ,Sulfuric Acid, Titration? ... Determination of organic matter in ,wastewater, Chemical Oxygen Consumption (COD) is an indicator for measuring the degree of water pollution and reflects the content of reducing substances in water. It is commonly measured by the K 2 Cr 2 O 7 method.

Journal of Energy Chemistry Journal Impact IF 2020-2021 ...
Journal of Energy Chemistry Journal Impact IF 2020-2021 ...

Adsorption ,desulfurization, of model gasoline by metal–,organic, framework Ni 3 ... A review of electrolyte ,additives, and impurities in vanadium redox flow batteries: ... framework prepared by a facile morphology-controlled solid-state pyrolysis method for oxygen reduction reaction in both ,acidic and alkaline, media:

Complex biochemical reactors for selenium and sulphate ...
Complex biochemical reactors for selenium and sulphate ...

Reactor performance, detailed ,organic, matter composition and microbial community structure were measured for reactors with different wood to hay ratios and after different times of operation. Reactors with more hay than wood reduced sulphate from 500 mg/L to less than 100 mg/L and selenium from 20.3 µg/L to less than 0.2 µg/L with a retention time of 14 days for the whole period of operation.

Complex biochemical reactors for selenium and sulphate ...
Complex biochemical reactors for selenium and sulphate ...

Reactor performance, detailed ,organic, matter composition and microbial community structure were measured for reactors with different wood to hay ratios and after different times of operation. Reactors with more hay than wood reduced sulphate from 500 mg/L to less than 100 mg/L and selenium from 20.3 µg/L to less than 0.2 µg/L with a retention time of 14 days for the whole period of operation.

Determination of sulfuric acid nitric acid and ...
Determination of sulfuric acid nitric acid and ...

Determination of, sulfuric acid,, nitric acid, and hydrofluoric acid in etch solutions. Two separate, titration, sequences are required to analyze the mixture: -, titration, of the HF content with Al(NO 3) 3 (the «elpasolite» reaction) -, titration, of the H 2 SO 4 with BaCl 2 followed by, titration, with NaOH to determine the «total acids» content

6.6 ALKALINITY AND ACID NEUTRALIZING CAPACITY
6.6 ALKALINITY AND ACID NEUTRALIZING CAPACITY

Sulfuric acid, titrant ,Sulfuric acid, is the titrant used routinely by USGS. The normal-ity of ,sulfuric acid, titrant is subject to change with time. P 0.1600N or 1.600N solutions in prefilled cartridges for the Hach digital titrator are available from the QWSU (USGS, Ocala, Fla.). Normality of ,sulfuric acid, …

Alkalinity and Endpoint pH Determination by Acid Titration ...
Alkalinity and Endpoint pH Determination by Acid Titration ...

concentrated, and dilute sulfuric acid. Sulfuric acid is a clear, colorless and corrosive liquid that can burn skin, eyes and clothing., Concentrated, acid is highly reactive with water and you should never add water into, concentrated, acid, but rather always slowly add the acid into a larger volume of water while stirring to dissipate the heat.

Journal of the Electrochemical Society | Standard Journal ...
Journal of the Electrochemical Society | Standard Journal ...

Abbreviation of ,Journal of the Electrochemical Society,. The ISO4 abbreviation of ,Journal of the Electrochemical Society, is J. Electrochem. Soc. . It is the standardised abbreviation to be used for abstracting, indexing and referencing purposes and meets all criteria of the ISO 4 standard for abbreviating names of scientific journals.

Products & Services | Manufacturer from Delhi
Products & Services | Manufacturer from Delhi

APPLICATION : 1) Catalyst for recovering ,sulfur, in the petrochemical industry. 2) Excellent defluorination agent for drinking water and for recycling alkyl-hydrocarbon in alkylbenzene production. 3) Reclaiming agent for de-,acidic, in transformer oil, and de-arsenic agent in the Acid industry.

7704-34-9 | MFCD00085316 | Sulfur
7704-34-9 | MFCD00085316 | Sulfur

Title: Reactions of ,sulfur,- and phosphorus-substituted fluoroalkylating silicon reagents with imines and enamines under ,acidic, conditions. Journal: The Journal of ,organic, chemistry 20120217 Title: Rigid orthogonal bis-TEMPO biradicals with improved solubility for dynamic nuclear polarization.

Lab 3: Alkalinity - Water/Wastewater Distance Learning at ...
Lab 3: Alkalinity - Water/Wastewater Distance Learning at ...

Clean the, burette, and fill almost to the top with N/50 sulfuric acid. Then run some acid to waste until the "zero" mark is reached. This should leave the stopcock and tip of the burette full of the solution. Measure out 100 mL of the water to be tested and pour into a clean white porcelain evaporating dish.

Medscape | Environ Sci Pollut Res Int - Content Listing
Medscape | Environ Sci Pollut Res Int - Content Listing

Review on the treatment of ,organic wastewater, by ... Experimental kinetic studies on the effects of ,organic additives, on ... and NH3 in the vacuum evaporation of ,desulfurization wastewater, ...

Recovery of high purity sulfuric acid from the waste acid ...
Recovery of high purity sulfuric acid from the waste acid ...

1/1/2013, · Waste sulfuric acid is a byproduct generated from numerous industrial chemical processes. It is essential to remove the impurities and recover the sulfuric acid from the waste acid. In this study the rectification method was introduced to recover high purity sulfuric acid from the waste acid generated in, toluene nitration, process by using ...

Standard Operating Procedure (SOP) 3.2.1.1 Measuring ...
Standard Operating Procedure (SOP) 3.2.1.1 Measuring ...

This method involves titration, the addition of small, precise quantities of ,sulfuric acid, (the reagent) to the sample until the sample reaches a certain pH (the endpoint). The amount of ,acid, used corresponds to the total alkalinity of the sample. Digital titrators have counters that display numbers. A plunger is forced into a

Formic acid | HCOOH - PubChem
Formic acid | HCOOH - PubChem

Formic acid, is the simplest carboxylic ,acid,, containing a single carbon. Occurs naturally in various sources including the venom of bee and ant stings, and is a useful organic synthetic reagent. Principally used as a preservative and antibacterial agent in livestock feed.

A state-of-the-art review on wastewater treatment ...
A state-of-the-art review on wastewater treatment ...

23/1/2021, · Hence, it is considered appropriate for the ,wastewater, treatment applications, such as removing various inorganic, ammonium-N, and ,organic, pollutants from waste effluents (Hina 2013). Jung in 2016 has used biochar for sorption of phosphate ions, while Cole in 2017 has used biochar for isolation of dissolved phosphorous and nitrogen from the municipal ,wastewater, (Michalak et al. 2019 ).

Perchloric acid | HClO4 - PubChem
Perchloric acid | HClO4 - PubChem

PERCHLORIC ACID,, WITH NOT MORE THAN 50% ,ACID, is a solution of a strong oxidizing ,acid,. May react vigorously or deflagrate when mixed with oxidizable material [Merck]. This includes (but is not limited to) alcohols, amines, boranes, dicyanogen , hydrazines, hydrocarbons, hydrogen , nitroalkanes, powdered metals, silanes, or thiols [Bretherick 1979. p.174].

Frontiers | Alkaliphilic Bacteria with Impact on ...
Frontiers | Alkaliphilic Bacteria with Impact on ...

Examples of alkaliphile enzymes and their uses include ,alkaline, proteases, which are used as detergent ,additives, and for removing hair from hides; starch-degrading amylases with elevated pH optima are also suitable for laundry use and debranching enzymes, together with amylase, play a role in stain removal (Ito et al., 1989; Gessesse et al., 2003; Sarethy et al., 2011); ,alkaline, keratinases ...

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