SUPERCRITICAL WATER OXIDATION OF PULP-MILL SLUDGES

被引：0

作者：

MODELL, M ^{[1
]}

LARSON, J ^{[1
]}

SOBCZYNSKI, SF ^{[1
]}

机构：

[1] US DOE,OFF IND TECHNOL,WASHINGTON,DC 20585

来源：

TAPPI JOURNAL | 1992年 / 75卷 / 06期

关键词：

CHEMICAL REACTIONS; COST EFFECTIVENESS; COSTS; DESIGN; DIOXINS; EFFLUENT TREATMENT; EFFLUENTS; HALIDES; HALOGEN COMPOUNDS; MILLS; OXIDATION; PLANT DEPARTMENTS; PULP MILLS; REPLACEMENT; SLUDGE; SLUDGE DISPOSAL; SOLID WASTES; TOTAL ORGANIC CARBON; WASTE DISPOSAL; WASTES; WATER;

D O I：

暂无

中图分类号：

TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];

学科分类号：

0805 ; 080502 ; 0822 ;

摘要：

Supercritical water oxidation (SCWO) is a new process that can oxidize organics very effectively at moderate temperatures (400-650-degrees-C) and high pressure (25.5 MPa). It is an environmentally acceptable alternative for sludge treatment. In bench-scale tests, total organic carbon (TOC) and halide (TOX) reductions of 99-99.9% were obtained; dioxin reductions were 95-99.9%. A conceptual design for commercial systems has been completed, and preliminary economics have been estimated. Cost comparisons confirm that SCWO is less costly than dewatering plus incineration for treating pulp mill sludges. In addition, SCWO can also compete effectively with dewatering plus landfilling where tipping fees exceed US$ 45/m3.

引用

页码：195 / 202

页数：8

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