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deep well drilling waste water harmless disposal technology systems ltd

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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deep well drilling waste water harmless disposal technology systems ltd
The effect of glycerol on readily biodegradable chemical ...
The effect of glycerol on readily biodegradable chemical ...

The ,COD, of ,wastewater, with limited VFA (e.g., 10 mg ,COD,/L) increased up to 2,502 mg ,COD,/L where propionic ,acid, (2,468 mg ,COD,/L) exists as the primary end product with a small quantity of acetic ,acid, (34 mg ,COD,/L). Propionic ,acid, was the main VFA component fermented from the glycerol addition.

EFFECT OF ACETIC ACID ON POLLUTANT DECOMPOSITION IN ...
EFFECT OF ACETIC ACID ON POLLUTANT DECOMPOSITION IN ...

The values of ,COD, of the ,wastewater, before and after the Fenton process are shown in Fig. 1. Fig. 1. Effect of ,acetic acid, on ,COD, of washing ,wastewater,-1 before and after the Fenton process. Amounts of FeSO 4⋅7H 2O – 2 g/dm 3, and H 2O 2 – 40 cm 3/dm Both initial ,COD, of washing ,wastewater,-1 and that obtained after the Fenton pro-

Understanding Laboratory Wastewater Tests: I. ORGANICS ...
Understanding Laboratory Wastewater Tests: I. ORGANICS ...

14/10/2010, · The COD test uses a chemical (potassium dichromate in a 50% sulfuric acid solution) that “oxidizes” both organic (predominate) and inorganic substances in a wastewater sample, which results in a higher COD concentration than BOD concentration for the same wastewater sample since only organic compounds are consumed during BOD testing.

Solutions for the treatment of wastewater with refractory COD
Solutions for the treatment of wastewater with refractory COD

Final processes: In these, the ,COD, is destroyed by oxidation or incineration, generating CO 2 and volatiles (VOC) that will have to be purified by a specific gas treatment. As a general rule, the installation and operation costs of chemical oxidation or incineration processes are ,high,. This table compares the main ,COD, effluent treatment systems:

Production of high-concentration n -caproic acid from ...
Production of high-concentration n -caproic acid from ...

21/4/2017, · The main characteristics of this wastewater were TCOD (total chemical oxygen demand) 270–310 mg COD/L, SCOD (soluble chemical oxygen demand) 170–215 mg COD/L, acetate 50–80 mg COD/L, TN (total nitrogen) 26–37 mg/L, and TP …

ApplicATiON: OpTimAl NuTRieNT RATiOs Optimal Nutrient ...
ApplicATiON: OpTimAl NuTRieNT RATiOs Optimal Nutrient ...

and industrial products (methanol, ethanol, acetic acid). cOD:BOD Ratio The ratio of these two sum parameters is a measure of the biodegradability of the wastewater pollution load. If the COD:BOD ratio does not exceed 2:1, the biodegradability is said to be good. Higher values indicate the presence of poorly biodegradable substances.

Anaerobic-aerobic treatment of purified terephthalic acid ...
Anaerobic-aerobic treatment of purified terephthalic acid ...

The biomass produced in the two stage ASP was very viscous and fluffy and the sludge volume index (SVI) was very ,high, (200-450 ml/g). However, pretreatment of PTA effluent using an upflow AFFFBR ensured substantial reduction in BOD (63%) and ,COD, (62%) with recovery of biogas at 1.8-1.96 l/l effluent treated at a volumetric loading rate (VLR) 4-5 kg ,COD,/m(3) d.

TREATMENT OF HIGH ETHANOL CONCENTRATION WASTEWATER …
TREATMENT OF HIGH ETHANOL CONCENTRATION WASTEWATER …

The ,high, organic content, variable composition, lack of inorganic nutrients and the large seasonal flow variations of winery ,wastewater, may result in operational difficulties associated with treatment. ,Chemical oxygen demand, (,COD,) values around 5000 mg L-1 are common, increasing

Maximum Allowable Discharge Concentrations for Other ...
Maximum Allowable Discharge Concentrations for Other ...

wastewater, treatment plants 20 30 - ,Waste water, quality indicator Other discharging work units 100 150 300 ,Waste water, quality indicator 5 ,COD, (4) Beet sugar processing, synthetic fatty ,acid,, wet method fibre board, dyes, fur treating, organophosphorus pesticide industries 100 200 1000 ,Waste water, quality indicator MSG, alcohol,

Solutions for the treatment of wastewater with refractory COD
Solutions for the treatment of wastewater with refractory COD

Final processes: In these, the ,COD, is destroyed by oxidation or incineration, generating CO 2 and volatiles (VOC) that will have to be purified by a specific gas treatment. As a general rule, the installation and operation costs of chemical oxidation or incineration processes are ,high,. This table compares the main ,COD, effluent treatment systems:

The effect of glycerol on readily biodegradable chemical ...
The effect of glycerol on readily biodegradable chemical ...

The ,COD, of ,wastewater, with limited VFA (e.g., 10 mg ,COD,/L) increased up to 2,502 mg ,COD,/L where propionic ,acid, (2,468 mg ,COD,/L) exists as the primary end product with a small quantity of acetic ,acid, (34 mg ,COD,/L). Propionic ,acid, was the main VFA component fermented from the glycerol addition.

PHARMACEUTICAL MANUFACTURING
PHARMACEUTICAL MANUFACTURING

acid,, etc. Solvents are organic compounds, which result in ,high, concentrations of ,COD, in the ,wastewater,. Solvents can be toxic for biomass in biological treatment. Some solvents are more volatile than water (Low Boiling Point solvents) meaning that evapoconcentration is not a treatment option as they will be evaporated and found in the

Biochemical oxygen demand - Wikipedia
Biochemical oxygen demand - Wikipedia

Biochemical oxygen demand, is the amount of dissolved oxygen needed by aerobic biological organisms to break down organic material present in a given water sample at certain temperature over a specific time period. The BOD value is most commonly expressed in milligrams of oxygen consumed per litre of sample during 5 days of incubation at 20 °C and is often used as a surrogate of the degree of organic pollution of water. BOD reduction is used as a gauge of the effectiveness of ,wastewater, ...

Performance Evaluation of Brewery Biological Wastewater ...
Performance Evaluation of Brewery Biological Wastewater ...

Brewery effluent is characterized by ,high, organic load and ,high, acidic content [2,7-10]. It consists of soluble sugar, soluble starch, carbohydrates, ethanol, volatile fatty ,acid,, suspended solids and yeast etc [11,3,6]. Most of the organic present in brewery ,wastewater, is biodegradable. ,COD, to BOD ratios ranges from 1.5 – 2.0 [11,10].

Understanding Laboratory Wastewater Tests: I. ORGANICS ...
Understanding Laboratory Wastewater Tests: I. ORGANICS ...

14/10/2010, · The COD test uses a chemical (potassium dichromate in a 50% sulfuric acid solution) that “oxidizes” both organic (predominate) and inorganic substances in a wastewater sample, which results in a higher COD concentration than BOD concentration for the same wastewater sample since only organic compounds are consumed during BOD testing.

PHARMACEUTICAL MANUFACTURING
PHARMACEUTICAL MANUFACTURING

acid,, etc. Solvents are organic compounds, which result in ,high, concentrations of ,COD, in the ,wastewater,. Solvents can be toxic for biomass in biological treatment. Some solvents are more volatile than water (Low Boiling Point solvents) meaning that evapoconcentration is not a treatment option as they will be evaporated and found in the

TREATMENT OF HIGH ETHANOL CONCENTRATION WASTEWATER …
TREATMENT OF HIGH ETHANOL CONCENTRATION WASTEWATER …

The ,high, organic content, variable composition, lack of inorganic nutrients and the large seasonal flow variations of winery ,wastewater, may result in operational difficulties associated with treatment. ,Chemical oxygen demand, (,COD,) values around 5000 mg L-1 are common, increasing

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