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coal coking processing wastewater

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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..

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Environmental Guidelines for Coke Manufacturing

Waste Characteristics The coke oven is a major source of fugitive air emissions The coking process emits: particulate matter (PM), volatile organic compounds (VOCs), polynuclear aromatic hydrocarbons (PAHs), methane (approximately 100 grams per metric ton (g/t) of coke), ammonia, carbon monoxide, hydrogen sulfide (from 50 to 80 g/t..

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Treatment of coal coking and coal gasification wastewaters ,

@article{osti_6409768, title = {Treatment of coal coking and coal gasification wastewaters}, author = {Luthy, R G}, abstractNote = {This paper summarizes experimental findings on physico-chemical pretreatment and biological oxidation of phenolic wastewaters from a coke plant and two pilot high-energy coal gasification process Pollutant concentrations in coal coking and phenolic coal ...

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Investigation into Ozonation of Coal Coking Processing ,

Jun 24, 2010· Investigation into Ozonation of Coal Coking Processing Wastewater for Cyanide, Thiocyanate and Organic Removal J(Hans) van Leeuwen Iowa State University, Port Kembla, NSW, Australia, Badri Badriyha San Diego State University, Port Kembla, NSW, Australia & Steven Vaczi Thiess Environmental Services, Port Kembla, NSW, Australia..

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PRIME PubMed | Effect of different pH coking wastewater on ,

H2SO4 has an effect on the sorption of organic contaminants by coking coal (CC) in wastewater This paper focused on the effect of pH on the removal of chemical oxygen demand (COD), phenols and ammonia UV-vis spectra, Fourier transform infrared spectra, zeta potential and Brunauer, Emmett and Teller (BET) analysis were investigated to characterize the changes of CC properties and coking ...

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Study on advanced processing of coking wastewater using ,

【Abstract】 In this study,coking wastewater was treated using different coagulants to make it meet requirements of the secondary standard described in"Integrated wastewater discharge standard"Coagulation using PFS and PAC respectively was performed to study effect of coagulant dosage,and pH on removal ratios of colority,CODcr and turbidityIt is found that optimum dosage and ,..

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Coke Manufacturing - IFC

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 contain 10 milligrams per liter (mg/l) of benzene, 1,000 mg/l of biochemical oxygen demand (BOD) (4 kg/t of coke), 1,500–6,000 mg/l of chemical..

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About Us - Northfield Coal | Waste to Energy Solutions

Global demand for coking coal has continued to increase over the past four years, even while the production of thermal coal was in modest decline (overall coal production fell in 2014 for the first time in 15 years while the market share of coking coal rose as production and demand rose)..

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Coal washing | Coal preparation | Coal washing plant pcocess

Apr 10, 2019· Clean coal is an energy that can generally be used as fuel, the fine coal of bituminous coal is generally used for coking The main reasons of washing coal are as bellow: 1 Improve coal quality and reduce emissions of coal-fired pollutants Coal washing can remove 50%-80% of ash and 30%-40% of total sulfur (or 60%~80% of inorganic sulfur) in coal..

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PRETREATMENT OF COKING WASTEWATER BY AN ,

Keywords: coking coal, coking wastewater, adsorption, COD, phenol Introduction Coking wastewater is a type of highly concentrated organic wastewater generated from a process of making coke, purifying coal gas and recovering coke products (Wu and Zhu, 2012) Coking wastewater is a kind of intractable wastewater which is..

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Comprehensive review on wastewater discharged from the ,

Rapid increase in the usage of coal has resulted in release of coal-related toxic pollutants through wastewaters (WWs) originating from coal mining sites, washeries, coke plants, and thermal power plants (TPPs) The quality of these WWs depends on the coal properties and the process involved in coal processing..

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CN101817617A - Comprehensive treatment process for coking ,

The process is applicable to reformation of wastewater treatment and drainage off-standard systems in various coal chemical industries, wastewater source utilization in the coal coking industry and application of wastewater closed internal cycle zero-release engineering in the coal coking industry..

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Recovery and utilization of waste heat in a coal based ,

Jun 01, 2012· The process of the direct reduction of haematite in a rotary kiln is schematically described in the Fig 1Haematite and non-coking coal are fed to the kiln at controlled rates without pre-mixing and the charge moves through the kiln depending upon the rotation speed and inclination of the kiln..

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40 CFR § 26132 - Hazardous wastes from specific sources ,

Untreated process wastewater from the production of toxaphene (T) K099: , Coking: K060: Ammonia still lime sludge from coking operations (T) K087: Decanter tank tar sludge from coking operations (T) K141: Process residues from the recovery of coal tar, including, but not limited to, collecting sump residues from the production of coke from ...

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Preparing coal slurry from coking wastewater to achieve ,

Sep 26, 2018· These properties are considerably influenced by coal surface properties and the adsorption of an additive by coal In this study, the effects of the internal components (eg, phenol, ammonia nitrogen, and metal ions) of coking wastewater on the adsorption of an additive by coal and on coal surface properties were measured..

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PRIME PubMed | Effect of different pH coking wastewater on ,

H2SO4 has an effect on the sorption of organic contaminants by coking coal (CC) in wastewater This paper focused on the effect of pH on the removal of chemical oxygen demand (COD), phenols and ammonia UV-vis spectra, Fourier transform infrared spectra, zeta potential and Brunauer, Emmett and Teller (BET) analysis were investigated to characterize the changes of CC properties and coking ...

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Carbonization of Coal for Metallurgical Coke Production ,

Nov 15, 2014· Carbonization of coal is also known as coking of coal The process consists of thermal decomposition of coals either in the absence of air or in controlled atmosphere to produce a carbonaceous residue known as coke Carbonization of coal can be carried out at the following three temperature rang..

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122 Coke Production - US EPA

The blended coal mass is heated for 12 to 20 hours for metallurgical coke Thermal energy from the walls of the coke chamber heats the coal mass by conduction from the sides to the middle of the coke chamber During the coking process, the charge is in direct contact with the heated wall surfaces and develops into an aggregate "plastic zone"..

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Coking - an overview | ScienceDirect Topics

DELAYED COKING PROCESS Description: Delayed coking process is a thermal process which increases the molecular aggregation or association in petroleum-based residues or coal tar pitches leading to extended mesophase domains This is achieved by holding them at an elevated temperature (usually 750 K–765 K) over a period of time (12 to 36 h)..

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Environmental pollution by wastewater from brown coal ,

Environmental pollution by wastewater from brown coal processing – a remediation case study in Germany Journal of Environmental Engineering and Landscape Management, 2014 Uwe Kappelmeyer , Mass balance of coking brown coal briquettes Most of the technical equipment installed in the (Stottmeister 2008) 1920s and the 1930s in the ...

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Development of Coking/Coal Gasification Concept to Use ,

• Hardarshan Valia (PhD), President, Coal Science, Inc Dr Valia will serve as a team member and consultant to the project He has extensive experience in the steel industry and specifically in the utilization of coal and the coking process He also has experience with various production and economic aspects of both the coal and steel ...

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Adsorptive treatment of coking wastewater using raw coal ,

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 = 10, 70, and 140, 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 ...

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Processing coking-coal slurries from liquid-waste dumps ,

Oct 18, 2008· Processing coking-coal slurries from liquid-waste dumps Mandrov, G ; Schastlivtsev, E Coke and Chemistry , Volume 51 (6) – Oct 18, 2008..

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Coke (fuel) - Wikipedia

The industrial production of coke from coal is called cokingThe coal is baked in an airless kiln, a "coke furnace" or "coking oven", at temperatures as high as 2,000 °C (3,600 °F) but usually around 1,000–1,100 °C (1,800–2,000 °F) This process vaporises or decomposes organic substances in the coal, driving off volatile products, including water, in the form of coal-gas and coal-tar..

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Adsorption of COD in Coking Wastewater on Nitric Acid ,

(2) The optimized conditions for the adsorption of coking wastewater were as follows: 4 g of additional BAC-N3 per 50 mL of coking wastewater, 100 rpm shaking speed, and 120 min adsorption time; the COD removal rate is 7705%, and the adsorption effect was better than that of chitosan flocculent , coke powder , and some coal-based adsorbent ..

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Treatment of coal coking and coal gasification wastewaters ,

The US Department of Energy's Office of Scientific and Technical Information..

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Carbonization of Coal for Metallurgical Coke Production ,

Nov 15, 2014· Carbonization of coal is also known as coking of coal The process consists of thermal decomposition of coals either in the absence of air or in controlled atmosphere to produce a carbonaceous residue known as coke Carbonization of coal can be carried out at the following three temperature rang..

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ENVIRONMENTAL ENGINEERING SOLUTION: Coke making process ,

Apr 14, 2008· Waste streams of concern include residues from coal tar recovery (typically 01 kg/t of coke), the tar decanter (02 kg/t of coke), tar storage (04 kg/t of coke), light oil processing (02 kg/t of coke), wastewater treatment (01 kg/t of coke), naphthalene collection and recovery (002 kg/t of coke), tar distillation (001 kg/t of coke), and ...

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Coking Coal for steel production and alternatives - Front ,

Coking Coal for steel production and alternativ Metallurgical coal, also called metcoal or coking coal, is a type of coal that is used in the production of steel It is of a higher purity than thermal coal which is used in energy generation To make steel, metcoal is heated at around 1100 degrees C to remove water and other chemicals..

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Process for the recovery of coke oven waste heat - Didier ,

The process of claim 7 wherein waste gas from the coking coal preheating step is mixed with the firing gas prior to passing the firing gas into heat transfer relation with the hot coke 9 The process of claim 7 wherein the coking coal is heated to a temperature in the range of about 150° to 250° C and the firing gas is heated at a ...

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