Influence of fillers on the removal of rainwater runoff pollutants by a permeable brick system with a frame structure base

Lin, Zizeng; Yang, Hai; Chen, Huiming

doi:10.2166/wst.2020.021

Cited by 15 publications

(4 citation statements)

References 24 publications

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“…The use of volcanic slag in water purification is rather rare. However, some recent studies represent the capability of volcanic slag/rock in removing COD, phosphorus and ammonia nitrogen from rainwater runoff and wastewater (Lin et al 2019;Wan et al 2020). Better COD removal efficiencies were related to the affinity between the iron in slag and organic constituents in leachate (presented by COD) (Lin et al 2019).…”

Section: Resultsmentioning

confidence: 99%

“…However, some recent studies represent the capability of volcanic slag/rock in removing COD, phosphorus and ammonia nitrogen from rainwater runoff and wastewater (Lin et al 2019;Wan et al 2020). Better COD removal efficiencies were related to the affinity between the iron in slag and organic constituents in leachate (presented by COD) (Lin et al 2019). The pH of the zero point of charge (pH ZPC ) of the Kula region's volcanic slag was reported to be about 9.3 (Yigit & Tozum 2012).…”

Section: Resultsmentioning

confidence: 99%

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Reuse of residues/wastes as a sustainable solution for landfill leachate contaminated groundwater

Özkaraova¹,

Oral²

2022

Soil & Water Res.

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In order to increase the reuse of wastes and residues, as required by the Waste Framework Directive, the potential use of waste, residue and natural minerals as low-cost permeable reactive barrier (PRB) materials was investigated. The performance of a kitchen waste compost, sepiolite and steel slag was compared with that of volcanic slag, pumice and activated carbon in removing specific contaminants from landfill leachate. The experiments represented that the activated carbon removed 27% of the ammonium (NH4+), 75% of the chemical oxygen demand (COD) and 100% of the phosphate (PO43–), zinc (Zn2+) and nickel (Ni2+) from the landfill leachate. Volcanic slag exhibited removal efficiencies of 50% COD and 100% PO43– and pumice exhibited removal efficiencies of 20% NH4+, 27% Zn2+, 65% COD and 100% PO43–. The reactive materials were also checked for their potential in releasing unwanted constituents and represented different levels of the solute (e.g., PO43–, SO42–, NH4+) release. Among the reactives, sepiolite was found to be the reactive material reflecting a minor release (e.g., Zn2+, Cd2+ and Ni2+), but also delivering removal efficiencies of 40, 50, 65, 95, 97, 98, 98 and 100% for Ni2+, COD, Zn2+, SO42–, Cl–, F–, NH4+ and PO43–, respectively. The results show that the studied materials have the potential as reactives for PRB systems treating high strength contaminant plumes.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Reuse of residues/wastes as a sustainable solution for landfill leachate contaminated groundwater

Özkaraova¹,

Oral²

2022

Soil & Water Res.

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“…As the amount of filtration volume increased, the removal rate decreased, while the total amount of interception inside the permeable brick increased. With the brick heavily clogged, the diameter of internal pore decreased; meanwhile, the shearing force of water flow increased under water pressure, so that TSS was not easy to be physically intercepted by brick, which led to the reduction of removal rate [40]. Moreover, some of the intercepted TSS were also released under the runoff infiltration, resulting in a high effluent concentration and a low removal rate [25,39].…”

Section: Removal Rate and Cumulative Interception Quantitymentioning

confidence: 99%

Study on the Process and Characteristics of Clogging for Ceramic Permeable Brick

Lin

Yang²,

Chen

2021

Advances in Civil Engineering

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A ceramic permeable brick was selected for study in a device that was designed to fully investigate the process and characteristics of clogging in permeable bricks. In order to evaluate the permeability influenced by clogging, a simulated rainfall was filtered through the permeable brick placed in an innovative device. The macroscopic and microscopic changes in the brick and the filtrate were all measured to fully investigate the causes and process of clogging. Then, the mechanism of clogging in the permeable brick pores was further discussed. The results showed that the clogging risk of permeable brick was extremely high, and it can result in a complete clogging in only 5–10 years under the experimental conditions. The permeability coefficient and porosity both decreased exponentially with the increase in filtrate, which was attributed to the clogging of the internal pore structure due to particle interception. The chord size distribution results stressed that the blockage mainly occurred in the upper layer pores in the range of 0.5–1.5 mm, which is relatively sensitive to clogging due to the particle size distribution in rain water. The particle size distribution of the influent and effluent indicated that the clogging process could completely remove particles larger than 88 µm but showed variable removal efficiency for particles with sizes of 20–88 µm. This research offers new insight into the clogging of permeable bricks and provides theoretical guidance for restoring the brick permeability.

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“…This infiltration-based technology is comprised of structural layers with relatively high porosity to allow rainwater to pass through its surface brick and underlying structure. Permeable brick systems play a significant role in the hydrological effect and reduction in rainwater pollution [ 4 , 5 , 6 ].…”

Section: Introductionmentioning

confidence: 99%

An Experimental Study of Clogging Recovery Measures for Ceramic Permeable Bricks

Lin

Yang²,

Chen

2021

Materials

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To explore the best clogging restoration measures for ceramic permeable bricks, ceramic permeable bricks were accurately clogged using a self-designed device by controlling the permeability, and different technical measures were adopted to restore the permeability. Then, the recovery effect, operating parameters and pore change inside the bricks using pressure washing were further discussed. The results showed that pressure washing was the best recovery measure, the joint methods was not recommended due to performance to price ratio. It was necessary to conduct pressure washing in relatively moist conditions, increase the cleaning frequency or prolong the cleaning time in the case of no serious blockage. Hydraulic cleaning can not only increase isolated pores but also remove the trapped solid particles, and increase the proportion of connected pores and dredges through water channels. This research offers some reference for the daily maintenance of permeable bricks.

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Influence of fillers on the removal of rainwater runoff pollutants by a permeable brick system with a frame structure base

Cited by 15 publications

References 24 publications

Reuse of residues/wastes as a sustainable solution for landfill leachate contaminated groundwater

Reuse of residues/wastes as a sustainable solution for landfill leachate contaminated groundwater

Study on the Process and Characteristics of Clogging for Ceramic Permeable Brick

An Experimental Study of Clogging Recovery Measures for Ceramic Permeable Bricks

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