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Fermentation 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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Fermentation acid wastewater
Recovery of Terephthalic Acid from Alkali Reduction ...
Recovery of Terephthalic Acid from Alkali Reduction ...

TA was first precipitated from alkali reduction wastewater by, acidification, with, sulfuric acid,, and then the produced crude TA was dissolved in dimethylacetamide (DMA) so that crude TA could be...

Neutralization of Wastewater - avs.globecore.com
Neutralization of Wastewater - avs.globecore.com

6/1/2017, · Wastewater containing acids or alkali must be, neutralized., Water with pH of 6.5 – 8.5 are considered neutral., Neutralization, is required where pH is below 6.5 and above 8.5. Practically, the highest danger is posed by acidic wastewater containing salts of heavy metals.

Treatment of microfiber alkali weight‐reduction wastewater ...
Treatment of microfiber alkali weight‐reduction wastewater ...

Alkali weight‐reduction is a, necessary process to remove the sea component (polyesters) by alkali, for ‘sea‐island’ microfiber manufacture, in which, large amount,s, of wastewater with high content of Na 2 SO 4,,, ethylene glycol (EG) and terephthalic acid (TPA), were produced, thus making the traditional, activated sludge method being invalid for, wastewater treatment.

CN103663788A - Acid and alkali wastewater treatment ...
CN103663788A - Acid and alkali wastewater treatment ...

The invention discloses an ,acid, and ,alkali wastewater, treatment technology. The pH value of ,wastewater, is adjusted to the required range by adding a pH regulator, a ,wastewater, treatment agent applicable to the range of the pH value is added within the range of the pH value; supernate is participated and recovered, the pH value of the ,wastewater, can be adjusted after once treatment; and the ...

Synthesis of Thiocyameluric Acid C6N7S3H3 Its Reaction to ...
Synthesis of Thiocyameluric Acid C6N7S3H3 Its Reaction to ...

The three corresponding pK a values decrease and the ,acid, strength increases in the following order: cyanuric ,acid, (6.5, 10.6, ≈15) 38 < trithiocyanuric ,acid, (5.71, 8.36 and 11.38) 39 < cyameluric ,acid, (3.0–3.1, 6.1–6.6, 8.4–9.1). 40, 41 It is therefore estimated that the ,acid, strength of the title compound is comparable to hydromelonic ,acid, C 6 N 7 (NCN) 3 H 3 and the pK a ‐values ...

Wastewater Neutralization Systems - pH adjustment
Wastewater Neutralization Systems - pH adjustment

Waste ,Acid Neutralization, Systems for the pH ,neutralization, of concentrated acids and alkalis (bases). These systems are designed to handle the heat and energy released during the ,neutralization, of concentrated acids and bases by controlling the rate of ,reaction, and through the use of process cooling.

Hydrothermal alkaline conversion of actual acrylonitrile ...
Hydrothermal alkaline conversion of actual acrylonitrile ...

1/12/2020, · Under optimal reaction conditions (,300 °C reaction, temperature, 90 s reaction time, 1 mol/L initial NaOH concentration), the actual wastewater of acrylonitrile was converted into 1.33 × 10 4 mg/L acrylic acid, 1.98 × 10 4 mg/L formic acid and 9.40 × 10 3 mg/L, acetic acid, through a hydrothermal alkali-catalyzed reaction.

Treatment of microfiber alkali weight‐reduction wastewater ...
Treatment of microfiber alkali weight‐reduction wastewater ...

Alkali weight‐reduction is a necessary process to remove the sea component (polyesters) by alkali for ‘sea‐island’ microfiber manufacture, in which large amounts of wastewater with high content of Na 2 SO 4, ethylene glycol (EG) and terephthalic acid (TPA) were produced, thus making the traditional activated sludge method being invalid for ...

Alkaline Wastewater - an overview | ScienceDirect Topics
Alkaline Wastewater - an overview | ScienceDirect Topics

After recovering NaOH and Na 3 PO 4, the residual liquid is an, alkaline wastewater, and contains fluoride. The treatment of this wastewater is to neutralize by the addition of waste, acid, or, acidic wastewater, to pH 5, and then, lime is added to precipitate fluoride. The reactions are as follows: (8.12) 2HF + …

Influence of Acids and Alkali as Additives on ...
Influence of Acids and Alkali as Additives on ...

of organic acids, inorganic acids, and ,alkali, additives on the HTC of sewage sludge. Wang et al. (2017) investigated the influence of feed water pH (altered by the addition of acetic ,acid, or sodium hydroxide) on phosphorus transformation during HTC of sewage sludge.

BARIUM CARBONATE TREATMENT OF SULFURIC ACID WASTEWATER ...
BARIUM CARBONATE TREATMENT OF SULFURIC ACID WASTEWATER ...

hydraulic structures caused by untreated sulfuric ,acid wastewater,. Adequate treatment of mineral acidity is accomplished in industry in various ways among which are: (1) recovery of the sulfuric ,acid, for: a. reuse b. for sale to other industries (2) neutralization by: a. using inplant waste ,alkali, b. addition of commercial ,alkali

Acid-Alkali Reaction | Scientific.Net
Acid-Alkali Reaction | Scientific.Net

Journal of Biomimetics, Biomaterials and Biomedical Engineering Materials Science. Defect and Diffusion Forum

Application of alkali-activated materials for water and ...
Application of alkali-activated materials for water and ...

2/3/2019, · ,Alkali,-activation (or geopolymer) technology has gained a great deal of interest for its potential applications in ,water and wastewater treatment, during the last decade. ,Alkali,-activated materials can be prepared via a relatively simple and low-energy process, most commonly by treating aluminosilicate precursors with concentrated ,alkali, hydroxide and/or silicate solutions at (near) …

Influence of Acids and Alkali as Additives on ...
Influence of Acids and Alkali as Additives on ...

of organic acids, inorganic acids, and ,alkali, additives on the HTC of sewage sludge. Wang et al. (2017) investigated the influence of feed water pH (altered by the addition of acetic ,acid, or sodium hydroxide) on phosphorus transformation during HTC of sewage sludge.

Acid-Alkali Reaction | Scientific.Net
Acid-Alkali Reaction | Scientific.Net

Journal of Biomimetics, Biomaterials and Biomedical Engineering Materials Science. Defect and Diffusion Forum

Research of acid mine wastewater treatment technology
Research of acid mine wastewater treatment technology

main method. The basic principle is to input neutralizer into ,acid wastewater,, to make heavy metal ions and hydroxyl ions react, generate precipitation of hydroxide dissolution difficulty in water, and, finally, make water to purify ,wastewater, meets emission standard. When we use the method to deal with ,wastewater,, we should know the

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