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The maximum cyanide removal obtained in coking wastewater was 47 % with a mass ratio of hydrogen peroxide to cyanide of 12.2 provided that a coagulation–flocculation–decantation pretreatment was applied to remove the suspended solids composed mainly of coal.

The invention relates to a comprehensive treatment process for coking wastewater, which belongs to the technical field of water treatment and solves the problem that the treatment of the coking wastewater in the prior art is not thorough and the produced water cannot be repeatedly used as water for production. The process comprises the following several steps: ammonia evaporation, air ...

Recommendation: There should be renewed support for advanced coal mining and processing research and development to optimize use of the nation's coal resources by increasing the amount of coal that is economically minable through technological advances .

Global steel production is dependent on coal. Over 71% of the steel produced today uses coal. Metallurgical coal – or coking coal – is a vital ingredient in the steel making process. World crude steel production was 1.6 billion tonnes in 2017.

Oct 28, 2005· Coking wastewater is generated in the production of coke, coal gas, tar and other coke by-products. The coking wastewater includes inorganic pollutants such as ammonia, cyanogen, sulfocyan, heterocycle compounds and polycyclic aromatic compounds such as phenol, oils, naphthalene, pyridine, quinoline ...

Organic pollution removal from coke plant wastewater using coking coal Article (PDF Available) in Water Science & Technology 72(1):158-163 · June 2015 with 358 Reads How we measure 'reads'

The Coking Process * Define the term and explain the process used to create coke. Describe how coal is transformed into the coke necessary for use in the steelmaking process. Illustrate the process and label the important parts. * There are two main processes used to create coke. The first process used a .

Pretreatment of coking wastewater by an adsorption process using fine coking coal 423 wastewater causes significant harm to water and soil (Sun et al., 2008). Thus, coking wastewater must be treated appropriately prior to discharge. Current treatment methods for coking wastewater .

Abstract: Coking wastewater from the process of coking, coal gas purification and the coking products refine, whose ingredients are complicated and inconstant, is hard to meet the standard of reclaimed water used for industrial water by secondary treatment. In view of this situation, the advanced treatment technique of coking wastewater was ...

Technologies for coking wastewater treatment--《Clean Coal . Coking wastewater is produced in coking process of coal pyrolysis carbonization,raw coke oven gas and petrochemical recovery and purification,which contains lots of pollutant and contaminates environment severely.The maturer coking waste processing techniques are physical-chemical ...

Coke plant wastewater (CPW) is an intractable chemical wastewater, and it contains many toxic pollutants. This article presents the results of research on a semi-industrial adsorption method of coking wastewater treatment. As a sorbent, the coking coal (CC) .

This investigation assessed significant issues and conducted bench scale experiments pertinent to management and reuse of coal coking and coal gasification process wastewaters. For the case of high-BTU coal gasification processes, the cooling tower is the most likely target for reuse of process wastewater.

It is necessary though looking for the available disposal way to reduce the coking wastewater effluent, which can provide a reference for process selection and research on treatment of coking wastewater in iron and steel enterprise.

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 .

The mine run coal is crushed to a size for coking coal requirements. The entire production is treated over a coal jig which removes as waste primarily the coarse refuse. The coarse clean coal passes over the jig along with the fines and is elevated to a wedge bar stationary screen with 1 .

caking index is the factor governing the coking capacity of coal,it is a number,best coke can be obtained from coal which also named as prime coking coal(17-22 caking index bearing coal )produced ...

From coking coal to coke - perspectives for met coke production in European Union Aleksander Sobolewski, Bartosz Mertas Institute for Chemical Processing of Coal, Zabrze, Poland

Wastewater is generated at an average rate ranging from 0.3-4 cubic meters (m3) 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 contain: 10 milligrams per liter

A process of gasification combined with combustion is proposed in Figure 1 to thoroughly decompose the alkaline organic wastewater and avoid agglomeration. The entire process can be divided into four stages: (i) Coal and wastewater are mixed to form metal-ion-exchanged coal. (ii)

Jun 01, 2014· Coal is converted to coke in large coke oven batteries by the destructive distillation of coal. The coking process consists of heating coal in the absence of air to drive off the volatile compounds. The resulting material is a carbon mass called coke which is .

FUEL PROCESSING TECHNOLOGY ELSEVIER Fuel Processing Technology 50 (19971 179-184 Co-coking of coal with pitches and waste plastics G. Collin a-*, B. Bujnowska "l, J. Polaczek e DECHEMA e. V., Postfach 150104, D-60061 Frankfurt am Main, Gerntan h Institute fnr Chemistry and Technology of Petroleum and Coal, Technical Unit ersin of Wroclair, Gdanska 7/9, 50-344 Wroclavy.

Apr 14, 2008· Coke making process and its environmental impacts: Coke is a solid carbon fuel and carbon source used to melt and reduce iron ore. Coke and coke by-products, including coke oven gas, are produced by the pyrolysis (heating in the absence of air) of suitable grades of coal.

Coking wastewater was collected from a coal coking plant (Dongxin Coking Plant, Handan, China). The water quality analysis is shown in Table 2. The coking wastewater contained high COD, volatile phenols, and NH 3-N. It also contained small amounts of metal ions, such as Na +, Ca 2+, and Mg 2+.

CONCEPT STUDY ON COAL WASTE DISPOSAL OPTIONS - DONKIN MINE INTRODUCTION 121510478.231 1.2 April 2012 plant system capable of processing 3.6 Mtpa of raw coal from the Donkin Mine will be constructed to produce a coking coal ready for presentation to a barge loading facility and marine transportation operation.
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