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Title: Treatment of waste water in non-evaporating dehydration of low grade coal

Abstract

In a non-evaporating dehydration of brown coal, the coal is crushed and classified into lumps and fine particles. The lumps of coal are subjected to a non-evaporating dehydration in which waste water is produced. The waste water is contacted with the fine particles of coal so that components which affect the COD value of the water are absorbed by the coal particles. The coal particles are then burnt to produce saturated steam which is used in the non-evaporating dehydration.

Inventors:
; ; ; ; ; ; ;
Publication Date:
OSTI Identifier:
5617967
Patent Number(s):
US 4395334
Assignee:
Electric Power Development Co. LTD (Japan); Kawasaki Jukogyo K K (Japan)
Resource Type:
Patent
Resource Relation:
Patent Priority Date: Priority date 31 Mar 1981, Japan; Other Information: PAT-APPL-362605
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; BROWN COAL; DEHYDRATION; WASTE WATER; WASTE PROCESSING; COMBUSTION; COMMINUTION; RECYCLING; STEAM; CARBONACEOUS MATERIALS; CHEMICAL REACTIONS; COAL; ENERGY SOURCES; FOSSIL FUELS; FUELS; HYDROGEN COMPOUNDS; LIQUID WASTES; MANAGEMENT; MATERIALS; OXIDATION; OXYGEN COMPOUNDS; PROCESSING; THERMOCHEMICAL PROCESSES; WASTE MANAGEMENT; WASTES; WATER; 010800* - Coal, Lignite, & Peat- Waste Management; 013000 - Coal, Lignite, & Peat- Transport, Handling, & Storage

Citation Formats

Nakabayashi, Y, Kamei, T, Komai, K, Kurihara, M, Matsuura, Y, Nakamura, A, Shimotamari, A, and Wakabayashi, T. Treatment of waste water in non-evaporating dehydration of low grade coal. United States: N. p., 1983. Web.
Nakabayashi, Y, Kamei, T, Komai, K, Kurihara, M, Matsuura, Y, Nakamura, A, Shimotamari, A, & Wakabayashi, T. Treatment of waste water in non-evaporating dehydration of low grade coal. United States.
Nakabayashi, Y, Kamei, T, Komai, K, Kurihara, M, Matsuura, Y, Nakamura, A, Shimotamari, A, and Wakabayashi, T. 1983. "Treatment of waste water in non-evaporating dehydration of low grade coal". United States.
@article{osti_5617967,
title = {Treatment of waste water in non-evaporating dehydration of low grade coal},
author = {Nakabayashi, Y and Kamei, T and Komai, K and Kurihara, M and Matsuura, Y and Nakamura, A and Shimotamari, A and Wakabayashi, T},
abstractNote = {In a non-evaporating dehydration of brown coal, the coal is crushed and classified into lumps and fine particles. The lumps of coal are subjected to a non-evaporating dehydration in which waste water is produced. The waste water is contacted with the fine particles of coal so that components which affect the COD value of the water are absorbed by the coal particles. The coal particles are then burnt to produce saturated steam which is used in the non-evaporating dehydration.},
doi = {},
url = {https://www.osti.gov/biblio/5617967}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jul 26 00:00:00 EDT 1983},
month = {Tue Jul 26 00:00:00 EDT 1983}
}