Title

Integrated multi-objective membrane systems for control of microbials and DBP-precursors in surface water treatment

Abstract

Three integrated membrane systems (IMSs) are evaluated for surface water treatment, being: an IMS with soil passage and nanofiltration; an IMS with ultrafiltration and reverse osmosis: and an IMS with physical/chemical treatment and reverse osmosis. An IMS with bank filtration and nanofiltration shows an initial MTC decrease followed by a stabilisation for at least 40 days. Precursor parameters are decreased for more than 95%. An IMS with ultrafiltration and reverse osmosis is a very promising process. Ultrafiltration proves to be a superior pretreatment. After the initial MTC decrease no further productivity decline takes place for more than 6000 h. Biofouling causes a significant increase of the feed-concentrate pressure drop. Both membrane steps are solid disinfection barriers although reverse osmosis membranes show some deficiencies. An IMS with slow sand filtration and reverse osmosis shows a significant biofouling caused by the anti-sealant dosage. Without an antiscalant dosage long running times without chemical cleaning can be reached. Summarising, it can be concluded that all IMSs studied are very promising options for an integrated surface water treatment.

Publication Date

1-1-1998

Publication Title

Water Supply

Volume

16

Issue

1-2

Number of Pages

328-333

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

Socpus ID

0031747633 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0031747633

This document is currently not available here.

Share

COinS