Next Article in Journal
Distributed Manufacturing of Flexible Products: Technical Feasibility and Economic Viability
Previous Article in Journal
Thermal Inertia Performance Evaluation of Light-Weighted Construction Space Envelopes Using Phase Change Materials in Mexico City’s Climate
Article Menu
Issue 4 (December) cover image

Export Article

Open AccessArticle
Technologies 2017, 5(4), 70; doi:10.3390/technologies5040070

Dewatering and Treatment of Septage Using Vertical Flow Constructed Wetlands

Department of Civil and Construction Engineering, Faculty of Engineering and Science, Curtin University Malaysia, CDT 250, Miri 98009, Sarawak, Malaysia
*
Author to whom correspondence should be addressed.
Received: 8 October 2017 / Revised: 24 October 2017 / Accepted: 25 October 2017 / Published: 26 October 2017
(This article belongs to the Section Environmental Technology)
View Full-Text   |   Download PDF [2468 KB, uploaded 27 October 2017]   |  

Abstract

The vertical flow constructed wetland (VFCW) has become an attractive decentralised technology for septage treatment. One of the main purposes of the septage treatment is to reduce the volume of raw septage through dewatering, where the solids content is retained in the wetland bed and the water content is released. The retention of solids forms a layer of sludge deposit at the wetland surface, and the drained water, the so-called leachate, typically contains a lower solids content. This article reports the performance of dewatering and filtration of a pilot-scale VFCW designed for septage treatment. A comparison between two feeding strategies, hydraulic loading rate (HLR) and solids loading rate (SLR), is presented. The dewatering efficiency through drainage was found to be dependent on the solids load. The removal of total solids (TS) and chemical oxygen demand (COD) were excellent as the quality of leachate showed that more than 90% of TS and COD were retained in the system. This study reveals that the feeding based on SLR delivered a more sustainable performance for dewatering and solids removal. The build-up of sludge deposit significantly deteriorated the dewatering efficiency through drainage, but it tended to improve the filtration capacity. View Full-Text
Keywords: vertical flow constructed wetlands; septage treatment; dewatering; filtration vertical flow constructed wetlands; septage treatment; dewatering; filtration
Figures

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Tan, Y.Y.; Tang, F.E.; Ho, C.L.I.; Jong, V.S.W. Dewatering and Treatment of Septage Using Vertical Flow Constructed Wetlands. Technologies 2017, 5, 70.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Technologies EISSN 2227-7080 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top