Clogging in subsurface-flow treatment wetlands: occurrence and contributing factors

P Knowles, G Dotro, J Nivala, J García - Ecological engineering, 2011 - Elsevier
Clogging is a major operational and maintenance issue associated with the use of
subsurface flow wetlands for wastewater treatment, and can ultimately limit the lifetime of the …

Clogging in subsurface-flow treatment wetlands: measurement, modeling and management

J Nivala, P Knowles, G Dotro, J García, S Wallace - Water research, 2012 - Elsevier
This paper reviews the state of the art in measuring, modeling, and managing clogging in
subsurface-flow treatment wetlands. Methods for measuring in situ hydraulic conductivity in …

Light-expanded clay aggregate (LECA) as a substrate in constructed wetlands–A review

R Mlih, F Bydalek, E Klumpp, N Yaghi, R Bol… - Ecological …, 2020 - Elsevier
Light expanded clay aggregates (LECA) have been increasingly used as substrate material
for constructed wetlands given their phosphate removal capacity, mechanical strength …

Clogging processes caused by biofilm growth and organic particle accumulation in lab-scale vertical flow constructed wetlands

Z Lianfang, Z Wei, T Wei - Journal of Environmental Sciences, 2009 - Elsevier
The accumulation of organic matter in substratum pores is regarded as an important factor
causing clogging separately in the subsurface flow constructed wetlands. In this study, the …

The adsorption of heavy metal by Bornean oil palm shell and its potential application as constructed wetland media

HLH Chong, PS Chia, MN Ahmad - Bioresource technology, 2013 - Elsevier
Oil palm shell, a waste from palm oil industry, was cleaned and utilized as adsorbent. Its
particle size distribution gave the uniformity coefficient of approximately two indicating that it …

Steel slag filters to upgrade phosphorus removal in constructed wetlands: two years of field experiments

C Barca, S Troesch, D Meyer, P Drissen… - … science & technology, 2013 - ACS Publications
Electric arc furnace steel slag (EAF-slag) and basic oxygen furnace steel slag (BOF-slag)
were used as filter substrates in two horizontal subsurface flow filters (6 m3 each) designed …

Practical method based on saturated hydraulic conductivity used to assess clogging in subsurface flow constructed wetlands

A Pedescoll, E Uggetti, E Llorens, F Granés… - Ecological …, 2009 - Elsevier
This paper presents a simple method for evaluating the degree of clogging of subsurface
flow constructed wetlands based on saturated hydraulic conductivity measurements. The …

How to select substrate for alleviating clogging in the subsurface flow constructed wetland?

H Zhong, N Hu, Q Wang, Y Chen, L Huang - Science of the Total …, 2022 - Elsevier
Constructed wetland (CW) is a cost-effective and environmentally friendly ecological
technology for contaminated water remediation, especially in dispersed communities and …

Clogging in subsurface flow constructed wetlands: Mechanisms, influencing factors, measurements, modelling, and remediation

SK Mishra, SD Chowdhury, P Bhunia, A Sarkar - Ecological Engineering, 2024 - Elsevier
Clogging has garnered growing interest as a significant operational and maintenance
concern that affects the sustainable development and implementation of sub-surface flow …

Biofilm effect on soil hydraulic properties: Experimental investigation using soil‐grown real biofilm

E Volk, SC Iden, A Furman, W Durner… - Water Resources …, 2016 - Wiley Online Library
Understanding the influence of attached microbial biomass on water flow in variably
saturated soils is crucial for many engineered flow systems. So far, the investigation of the …