+ Most Popular
Cunninghamia lanceolata plantations in China
Mammalian lairs in paleo ecological studies and palynology
Studies on technological possibilities in utilization of anhydrous milk fat for production of recombined butter-like products
Should right-sided fibroelastomas be operated upon?
Large esophageal lipoma
Apoptosis in the mammalian thymus during normal histogenesis and under various in vitro and in vivo experimental conditions
Poissons characoides nouveaux ou non signales de l'Ilha do Bananal, Bresil
Desensitizing efficacy of Colgate Sensitive Maximum Strength and Fresh Mint Sensodyne dentifrices
Administration of fluid by subcutaneous infusion: revival of a forgotten method
Tundra mosquito control - an impossible dream?
Schizophrenia for primary care providers: how to contribute to the care of a vulnerable patient population
Geochemical pattern analysis; method of describing the Southeastern limestone regional aquifer system
Incidence of low birth weights in a hospital of Mexico City
Graded management intensity of grassland systems for enhancing floristic diversity
Microbiology and biochemistry of cheese and fermented milk
The ember tetra: a new pygmy characid tetra from the Rio das Mortes, Brazil, Hyphessobrycon amandae sp. n. (Pisces, Characoidei)
Risk factors of contrast-induced nephropathy in patients after coronary artery intervention
Renovation of onsite domestic wastewater in a poorly drained soil
Observations of the propagation velocity and formation mechanism of burst fractures caused by gunshot
Systolic blood pressure in a population of infants in the first year of life: the Brompton study
Haematological studies in rats fed with metanil yellow
Studies on pasteurellosis. I. A new species of Pasteurella encountered in chronic fowl cholera
Dormancy breaking and germination of Acacia salicina Lindl. seeds
therapy of lupus nephritis. a two-year prospective study

Combined dual-size foam glass media filtration process with micro-flocculation for simultaneous removal of particulate and dissolved contaminants in urban road runoff

Combined dual-size foam glass media filtration process with micro-flocculation for simultaneous removal of particulate and dissolved contaminants in urban road runoff

Journal of Environmental Management 277: 111475

ISSN/ISBN: 0301-4797

PMID: 33059326

DOI: 10.1016/j.jenvman.2020.111475

In this study, a combined media filtration process with micro-flocculation (CMF) was developed, to simultaneously treat particulate and dissolved contaminants in urban road runoff. Dual-size foam glass media with stone and sand layers were applied and the efficiency of road runoff treatment was investigated according to filtration and micro-flocculation under various experimental conditions (stone/sand layer ratio, linear velocity, and coagulant types). Moreover, the removal efficiencies of suspended solids (SS), phosphorus, organic carbon, and heavy metals (Zn, Cu, Pb, Cd) by CMF were evaluated. The removal rate of SS was maintained to be above 84.1% for 1 h filtration by the dual-size foam glass, regardless of increasing pressure. The removal of phosphorus by micro-flocculation was more suitable in alum than ferric due to a higher initial floc growth rate and an increased particle size. The performance of the CMF was significantly improved over media filtration only process (MF) in removing both particulate and dissolved contaminants. The removal efficiency of all particulate pollutants by CMF was found to be more than 90%, and notably, the dissolved phosphorus, which was mostly not removed by MF, was also removed by 97.4%. Meanwhile, the backwash efficiency of CMF was half that of MF. Physical removal mechanisms, such as internal diffusion, dominated MF, whereas chemical removal mechanisms, such as adsorption and surface precipitation, dominated CMF. These results show the potential of the CMF process for the treatment of urban road runoff and identify the removal mechanisms of the filtration process that use micro-flocculation with dual-size foam glass.

Please choose payment method:

(PDF emailed within 0-6 h: $19.90)

Accession: 071468092

Download citation: RISBibTeXText

Related references

Evaluation of foam-glass media in a high-rate filtration process for the removal of particulate matter containing phosphorus in municipal wastewater. Journal of Environmental Management 239: 159-166, 2019

Electrochemical filtration process for simultaneous removal of refractory organic and particulate contaminants from wastewater effluents. Water Research 144: 699-708, 2018

Effect of Mesh Size on Microscreen Filtration Combined with Foam Fractionation for Solids Removal in Recirculating Aquacultural Seawater. North American Journal of Aquaculture 82(2): 215-223, 2020

Using dissolved humic acid to remove hydrophobic contaminants from water by complexation-flocculation process. Environmental Science and Technology 32(7): 981-986, 1998

Coagulation, flocculation, dissolved air flotation and filtration in the removal of Giardia spp. and Cryptosporidium spp. from water supply. Environmental Technology 40(5): 654-663, 2019

Characterization of Urban Runoff Pollution between Dissolved and Particulate Phases. The Scientific World Journal 2013: 1-6, 2013

Characterization of urban runoff pollution between dissolved and particulate phases. Thescientificworldjournal 2013: 964737, 2013

Retention and transport processes of particulate and dissolved micropollutants in stormwater biofilters treating road runoff. Science of the Total Environment 656: 1178-1190, 2019

Application of ultra-flocculation and turbulent micro-flotation to the removal of fine contaminants from water. Colloids and Surfaces A: Physicochemical and Engineering Aspects 151(1-2): 283-291, 1999

A new installation for the treatment of road runoff Up-flow filtration by polypropylene media. IAGLR Conference Program and Abstracts 46: 237, 2003

Removal of contaminants in urban runoff by groundwater recharge basins. Proceedings, AWWA Annual Conference 1985: 1411-1423, 1985

A new installation for treatment of road runoff: up-flow filtration by porous polypropylene media. Water Science and Technology: a Journal of the International Association on Water Pollution Research 52(12): 225-232, 2005

Pretreatment of Petrochemical Secondary Effluent by Micro-flocculation and Dynasand Filtration: Performance and DOM Removal Characteristics. Water Air and Soil Pollution 227(11): 415, 2016

Effect of media type and particle size on dissolved organic carbon release from woody filtration media. Bioresource Technology 100(2): 1020-1023, 2009

Coupling AFM fluid imaging with micro-flocculation filtration process for the technological optimization. Huan Jing Ke Xue= Huanjing Kexue 33(8): 2723-2727, 2012