The Mechanism of Linear Alkylbenzene Sulphonates Removal in Domestic Laundry Wastewater Through Constructed Rapid Infiltration Systems

J. Y. Luo, Q. Feng, L. Gu, Z. X. Xue, F. Fang, J. S. Cao

2018

Abstract

As one of the main pollutants in domestic laundry wastewater, the direct discharge of linear alkylbenzene sulphonates (LAS) would cause great risks to the natural environment. In this paper, the constructed rapid infiltration system (CRIS) was applied to investigate its performance on removing LAS from domestic laundry wastewater. The laboratory tests indicated that the CRIS could treat the LAS-enriched wastewater efficiently and stably during the whole operation time (63 d) despite the big fluctuation of influent concentration. The LAS removal mainly occurs at the upper level of soil which was approximate 92%. The total removal efficiency could maintain approximate 99%. Mechanisms investigation found that the efficient removal of LAS by CRIS was the combination effects of soil adsorption and indigenous microbial degradation. The formation of alternative aerobic and anaerobic environments in the upper-level soil is necessary and important to the fast biodegradation of LAS. The treatment of LAS-enriched wastewater by CRIS exhibits little effects on the pH, oxidational and reductive value (Eh) and total nitrogen of soils but results in the reduction of organic matters. The results demonstrate that the CRIS is an effective and sustainable strategy to treat the LAS-enriched laundry wastewater in domestic residential community.

Paper Citation

in Harvard Style

Luo J., Feng Q., Gu L., Xue Z., Fang F. and Cao J. (2018). The Mechanism of Linear Alkylbenzene Sulphonates Removal in Domestic Laundry Wastewater Through Constructed Rapid Infiltration Systems.In Proceedings of the International Workshop on Environmental Management, Science and Engineering - Volume 1: IWEMSE, ISBN 978-989-758-344-5, pages 401-408. DOI: 10.5220/0007561304010408

in Bibtex Style

@conference{iwemse18,
author={J. Y. Luo and Q. Feng and L. Gu and Z. X. Xue and F. Fang and J. S. Cao},
title={The Mechanism of Linear Alkylbenzene Sulphonates Removal in Domestic Laundry Wastewater Through Constructed Rapid Infiltration Systems},
booktitle={Proceedings of the International Workshop on Environmental Management, Science and Engineering - Volume 1: IWEMSE,},
year={2018},
pages={401-408},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0007561304010408},
isbn={978-989-758-344-5},
}

in EndNote Style

TY - CONF

JO - Proceedings of the International Workshop on Environmental Management, Science and Engineering - Volume 1: IWEMSE,
TI - The Mechanism of Linear Alkylbenzene Sulphonates Removal in Domestic Laundry Wastewater Through Constructed Rapid Infiltration Systems
SN - 978-989-758-344-5
AU - Luo J.
AU - Feng Q.
AU - Gu L.
AU - Xue Z.
AU - Fang F.
AU - Cao J.
PY - 2018
SP - 401
EP - 408
DO - 10.5220/0007561304010408