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Coking wastewater treatment for industrial reuse

01/08/2013  Coking wastewater is usually generated from coal coking, coal gas purification and byproduct recovery processes. These processes consist of a high concentration of ammonia, toxic and carcinogenic substances, such as phenol, cyanide (CN − ), thiocyanide (SCN − ), polycyclic aromatic hydrocarbons (PAHs) and nitrogen-, oxygen- or sulfur-containing heterocyclic compounds (Ghose,

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Adsorptive treatment of coking wastewater using

Raw coal fly ash (RCFA) was used directly as adsorbent to treat coking wastewater. The results show that the RCFA can introduce COD (14, 4, and 11 mg L-1 at pH = 1.0, 7.0, and 14.0, respectively) into water due to the dissolution of reductive components from RCFA, this can be avoided by washing (6 times) using distilled water. The concentration of leached metal elements in wastewater is lower than

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PRETREATMENT OF COKING WASTEWATER BY AN ADSORPTION

In this process (Fig. 1), coal is fed into the coking system and wastewater is poured into biological treatment after adsorption. The process facilitates coking coal recycling. This paper focuses on the feasibility of using coking coal to adsorb organic pollutants from coking wastewater.

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Investigation into Ozonation of Coal Coking

24/06/2010  A laboratory investigation was carried out to establish whether ozonation could be used to oxidize cyanides, thiocyanates and color in wastewater from a coal coking plant to supplement biological and activated carbon treatment (GAC). Ozonation was found to be capable of oxidizing cyanide and cyanate to sufficiently low levels at relatively high stoichiometric ratios as a result of competitive ozone

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Coal Coking Processing Wastewater -

Coal Coking Processing Wastewater Prompt : Caesar is a famous mining equipment manufacturer well-known both at home and abroad, major in producing stone crushing equipment, mineral separation equipment, limestone grinding equipment, etc.

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(PDF) Pretreatment of coking wastewater by an

using coking coal to adsorb organic pollutants in coking wastewater. The sorption kinetics and equilibrium sorption isotherms of coking coal for removal of chemical oxygen demand (COD) and phenol

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(PDF) Van Leeuwen, J, Badriyha, B, and Vaczi, S (2003 ...

Van Leeuwen, J, Badriyha, B, and Vaczi, S (2003) Investigation into ozonation of coal coking processing wastewater for cyanide, thiocyanate and organic removal Ozone Sci Eng, 25(4) 273-83

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Coal Coking Processing Wastewater

Coal Coking Processing Wastewater. Coal Briquette Machine: coal coking processing wastewater - The strong briquetting machine is mainly used for coal powder, coalclay, coke, coke powder, refractory and metallurgical powder cold pressed Pellet. All powdered materials need to be furnaced can be completed by the strong briquette machine. Get Price. 122 coke production. 2015-9-10mixing bins

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Organic matter in delayed coking wastewater:

01/11/2020  The coking wastewater contains emulsions which are difficult to process in water treatment plants, especially when the coker is fed with feedstocks have high content of heteroatoms. This study examined the molecular composition of emulsified oil and dissolved organic matter (DOM) in coking wastewater. The emulsification agents in coking wastewater were identified. The emulsified oil and

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Study on a Coal Washing Wastewater Treatment Process and ...

coal washing wastewater can be destroyed by carbide slag, by settling the particles down. But the settling rate was too slow, so flocculant was required to promote the settling and improve the sediment. Non-ionic PAM was selected according experiment and economic consideration. An orthogonal test was conducted since the addition quantity of carbide slag and PAM and the stirring time after the ...

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Treatment of Coal Coking and Coal Gasification Wastewaters

WASTEWATER CHARACTERISTICS Coal coking consists of pyrolysis of coal at temper atures up to 1 000?C in the absence of oxygen. Volatile components are driven from the coal, collected in a gas main, and condensed. Tar is decanted from the con densate and the resulting liquor is termed flushing li quor or waste ammonia liquor. This liquor is a major source of wastewater in coke production; other ...

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(PDF) Van Leeuwen, J, Badriyha, B, and Vaczi, S (2003 ...

Van Leeuwen, J, Badriyha, B, and Vaczi, S (2003) Investigation into ozonation of coal coking processing wastewater for cyanide, thiocyanate and organic removal Ozone Sci Eng, 25(4) 273-83

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(PDF) Pretreatment of coking wastewater by an

Gas chromatograms of coking wastewater before and after adsorption Figure 4 and infrared spectroscopic analysis (Liu et al,1999) reveal that the major functional groups of coking coal

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Pretreatment of coking wastewater by an

Coal is fed into a coking system after adsorption. This study validates the feasibility of using coking coal to adsorb organic pollutants in coking wastewater. The sorption kinetics and equilibrium sorption isotherms of coking coal for removal of chemical oxygen demand (COD) and phenol from coking wastewater was also discussed in this paper. Gas chromatograph/mass spectroscopy (GC/MS) was

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Steel and Manufacturing - Water and Wastewater

Coking Wastewater Coke Wastewater Treatment . Heating coal over 1100 Co in the absence of oxygen produces metallurgical coke. This process provides both heat and carbon (coke) required for iron production. During this process the volatile materials contained in the coal are driven off, leaving coke as the product. Gas produced by coking is withdrawn by means of blowers to recover energy-rich ...

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Adsorption behaviors of typical aromatic pollutants in ...

coking wastewater and the process of quinoline adsorption onto three kinds of coal follows pseudo-second-order rate kinetics. Moreover, it was found that the humic substance was easier to remove than other substances such as proteins, carbohydrates, fluorescence aromatic protein and SMPs by brown coal from the wastewater (Mohammad et al., 2017 ...

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Experimental study on anaerobic-Sequencing

Materials,process flow and method of anaerobic-Sequencing Biofilm Batch Reactor process in coal coking wastewater treatment are introduced.The feasibility of this process is studied,at the same time corresponding optimum operation parameters are obtained.Comparison is also made between single SBBR process.In the end the advantages of anaerobic-Sequencing Biofilm Batch Reactor(SBBR) are ...

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Physicochemical Problems of Mineral Processing

Physicochemical Problems of Mineral Processing. 2018 Vol. 54, iss. 2 ... Adsorption behaviors of typical aromatic pollutants in biologically treated coking wastewater on powdered coal. Autorzy. Sun, H., Wang, Y., Bian, Y. , He, X., Li, G. Treść / Zawartość. Pełne teksty: Pobierz; Warianty tytułu. Języki publikacji. EN. Abstrakty. EN. The raw coal was utilized as adsorbent based on its ...

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ADVANCED COAL PROCESSING PROJECT PORTFOLIO 2020

Advanced Coal Processing technologies will extract the full economic value from the United States’ coal resources by: ... coking process by-products, and 3D printing materials. Markets for coal as a fuel for power generation or steelmaking can be expanded by upgrading the properties of raw coal using new approaches including coal dewatering, fine coal cleaning, dry-cleaning processes to ...

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Coke (fuel) - Wikipedia

Coke is a grey, hard, and porous fuel with a high carbon content and few impurities, made by heating coal or oil in the absence of air—a destructive distillation process. It is an important industrial product, used mainly in iron ore smelting, but also as a fuel in stoves and forges when air pollution is a concern.. The unqualified term "coke" usually refers to the product derived from low ...

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CN206069641U - Coking wastewater processing

This utility model discloses a kind of coking wastewater processing system, including the oil interceptor, flotation tank, regulating reservoir, ferrum+activated coke reactor, biochemical treatment system, second pond, coagulative precipitation tank, ozone oxidation system that are sequentially connected by pipeline;The biochemical treatment system includes:The one-level anaerobic reation ...

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Steel and Manufacturing - Water and Wastewater

Coking Wastewater Coke Wastewater Treatment . Heating coal over 1100 Co in the absence of oxygen produces metallurgical coke. This process provides both heat and carbon (coke) required for iron production. During this process the volatile materials contained in the coal

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CN105060559A - Coking wastewater depth

The process includes the following steps: sending the coking wastewater subjected to ammonia steaming, oil separation, flotation and A2/O2 treatment into a conditioning tank for uniform quenching;...

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Pretreatment of coking wastewater by an

A new technique for pretreatment of coking wastewater is introduced based on the concept of circular economy. Coal is fed into a coking system after adsorption. This study validates the feasibility of using coking coal to adsorb organic pollutants in coking wastewater. The sorption kinetics and equilibrium sorption isotherms of coking coal for removal of chemical oxygen demand (COD) and phenol from coking wastewater

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Processes Free Full-Text Adsorption of Organic ...

On the other hand, the potential of using coal as adsorbent to purify coking wastewater has been recently verified and the coal adsorbent has a good adsorption effect on refractory organic matter . Based on this, we proposed the treatment process of pre-adsorption of coking coal to improve the efficiency of subsequent treatment process by separating the organic components in ROC. This research

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Adsorption of Organic Constituents from Reverse Osmosis ...

other hand, the potential of using coal as adsorbent to purify coking wastewater has been recently verified and the coal adsorbent has a good adsorption e ect on refractory organic matter [14]. Based on this, we proposed the treatment process of pre-adsorption of coking coal to improve the e ciency of

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Removal of quinoline from aqueous solutions by lignite ...

Keywords: quinoline adsorption; coking coal; adsorption isotherms; thermodynamics Introduction Coking wastewater pollution is a serious problem all over the word. Coking wastewater is generated from coal coking, coal gas purification and by-product recovery processes of coking (Fang et al, 2012). It usually contains complex inorganic and organic

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MicrobialTransformationof Polycyclic Aromatic Hydrocarbons ...

the vicinity ofa coal-coking treated wastewater discharge fromNovember1977 through August 1979. Six radiolabeled polycyclic aromatic hydrocarbons were incubated with sediment and water samples; '4CO2, cell-bound 14C, and polar transformationproductswereisolated andquantified. Whereas14CO2andbound 14C were major transformation products in sediment assays, soluble polar '4C

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Experimental study on anaerobic-Sequencing

Materials,process flow and method of anaerobic-Sequencing Biofilm Batch Reactor process in coal coking wastewater treatment are introduced.The feasibility of this process is studied,at the same time corresponding optimum operation parameters are obtained.Comparison is also made between single SBBR process.In the end the advantages of anaerobic-Sequencing Biofilm Batch Reactor(SBBR) are ...

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Physicochemical Problems of Mineral Processing

GAO, L., LI, S., WANG, Y., SUN, H., 2015. Organic pollution removal from coke plant wastewater using coking coal. Water Sci. Technol., 72, 158-163. LENG, L., YUAN, X., ZENG, G., SHAO, J., CHEN, X., WU, Z., WANG, H., PENG, X., 2015. Surface characterization of rice husk bio-char produced by liquefaction and application for cationic dye (Malachite green) adsorption. Fuel, 155, 77-85.

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Steel and Manufacturing - Water and Wastewater

Coking Wastewater Coke Wastewater Treatment. Heating coal over 1100 Co in the absence of oxygen produces metallurgical coke. This process... Primary Clarifier. Coking wastewater is fed into a rectangular decanter to remove large particles, including tar. STM-Aerotor™. The primary clarifier effluent ...

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Preparing coal slurry from coking wastewater to

Coking wastewater is used to prepare coal slurry, which can be used as combustion and gasification fuel. This promising technology simultaneously achieves resource utilization and wastewater management. Slurrying properties are essential to the industrial application of coal slurry. These properties are considerably influenced by coal surface properties and the adsorption of an additive by coal.

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Coke Manufacturing - IFC

Coal charging, coke pushing, and quenching are major sources of dust emissions. Wastewater is generated at an average rate ranging from 0.3 to 4 cubic meters (m 3) per ton of coke processed. Major wastewater streams are generated from the cooling of the coke oven gas and the processing of ammonia, tar, naphthalene, phenol, and light oil. Process wastewater may

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Pretreatment of coking wastewater by an

A new technique for pretreatment of coking wastewater is introduced based on the concept of circular economy. Coal is fed into a coking system after adsorption. This study validates the feasibility of using coking coal to adsorb organic pollutants in coking wastewater. The sorption kinetics and equilibrium sorption isotherms of coking coal for removal of chemical oxygen demand (COD) and phenol from

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Advanced treatment of coking wastewater by

Coking wastewater contains high a concentration of refractory and toxic compounds to be treated before being discharged into the environment. The water quality usually cannot meet the discharge limits after conventional biological treatment processes. This article initially investigated the treatability of coking wastewater with conventional and modified Fenton processes for advanced treatment of coking

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Removal of quinoline from aqueous solutions by lignite ...

wastewater is generated from coal coking, coal gas purification and by-product Removal of quinoline from aqueous solutions by lignite, coking coal and anthracite 215

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Discussion on Wastewater Treatment Process of

According to the diversification and utilization of water, zero discharge of coal chemical wastewater will be fulfilled. ... Wu L N, Shi X, Liu T et al. 2015 Study on the characteristics and processing technology of coal chemical industry wastewater Science technology and engineering 15 136-141. Google Scholar . He F 2012 Study on the source and characteristics of coal chemical wastewater and ...

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MicrobialTransformationof Polycyclic Aromatic Hydrocarbons ...

the vicinity ofa coal-coking treated wastewater discharge fromNovember1977 through August 1979. Six radiolabeled polycyclic aromatic hydrocarbons were incubated with sediment and water samples; '4CO2, cell-bound 14C, and polar transformationproductswereisolated andquantified. Whereas14CO2andbound 14C were major transformation products in sediment assays, soluble polar '4C

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Physicochemical Problems of Mineral Processing

GAO, L., LI, S., WANG, Y., SUN, H., 2015. Organic pollution removal from coke plant wastewater using coking coal. Water Sci. Technol., 72, 158-163. LENG, L., YUAN, X., ZENG, G., SHAO, J., CHEN, X., WU, Z., WANG, H., PENG, X., 2015. Surface characterization of rice husk bio-char produced by liquefaction and application for cationic dye (Malachite green) adsorption. Fuel, 155, 77-85.

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Process Flow Sheets - Water and Wastewater

Coal Combustion Residuals (CCR) Waste Pond; Coal Gasification - Black Water Treatment; Coal Gasification - Combined Cycle; Coal Pile Runnoff Wastewater Treatment; Coal Preparation Circuit; Coking Wastewater Treatment; Cold Lime Softening; Cold Rolling Wastewater Treatment; Continuous Caster Cooling Water; Copper/Molybdenum Flotation Circuit

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