Soil and water decontaminaton by extraction with surfactants

Document Type

Conference Proceeding

Publication Date

1-1-1993

Abstract

Samples of soil from contaminated sites and industrial sludges and residues were treated in the laboratory by extraction with water solutions containing surfactants and other additives. The contaminants included coal tar, PCBs, hydrocarbons, chlorinated hydrocarbons, nitrotoluenes and heavy metals. Some of the samples contained highly complex mixtures of organic and heavy metal contaminants. Reduction of the contaminant levels to less than 1 ppm was typically attained by the extraction treatment. The contaminant-laden wash liquors were purified by ultrafiltration, followed by air flotation. The cost of treatment by a commercial-scale, integrated process, consisting of the extraction and wash liquor purification steps, was estimated to be in the range of $50 - $80 per ton of treated soil, depending on soil matrix properties, chemical composition of the contaminants, and other site-specific factors. © 1993, Taylor & Francis Group, LLC. All rights reserved.

Identifier

0027270618 (Scopus)

Publication Title

Separation Science and Technology

External Full Text Location

https://doi.org/10.1080/01496399308019521

e-ISSN

15205754

ISSN

01496395

First Page

793

Last Page

804

Issue

1-3

Volume

28

Fund Ref

State of New Jersey Commission on Science and Technology

This document is currently not available here.

Share

COinS