Reduction of Urban Storm-Runoff Pollution Using Porous Concrete Containing Iron Slag Adsorbent

Abedi‐Koupai, Jahangir; Nejad, Soheila Saghaian; Mostafazadeh-Fard, Saman; Behfarnia, Kiachehr

doi:10.1061/(asce)ee.1943-7870.0001025

Cited by 28 publications

(8 citation statements)

References 22 publications

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“…Along with runoff mitigation, PCP has been most promising in reducing TSS loadings versus IBPG and PICP. This result may be due to its rough and porous surface structure, which is capable of trapping sediments while storing water volume within the surface and media [52][53][54][55][56]. Furthermore, the existing innovative storage design (0.13 m), consisted of #2 open-graded aggregates followed by #52 washed stone, which might be effective in particulate trapping within its enlarged void spaces.…”

Section: Water Quality Analysismentioning

confidence: 99%

A Comparison of Three Types of Permeable Pavements for Urban Runoff Mitigation in the Semi-Arid South Texas, U.S.A

Alam

Mahmoud

Jones

et al. 2019

Water

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This study examines the hydrologic and environmental performance of three types of permeable pavement designs: Porous Concrete Pavement (PCP), Permeable Interlocking Concrete (PICP), and Interlocking Block Pavement with Gravel (IBPG) in the semi-arid South Texas. Outflow rate, storage, Normalized Volume Reduction (NVR), Normalized Load Reductions (NLR) of Total Suspended Solids (TSS), and Biochemical Oxygen Demand (BOD5) were compared to results obtained from adjacent traditional pavements at different regional parking lots. A notable percentage of peak flow attenuation of approximately 31–100% was observed when permeable pavements were constructed and implemented. IBPG was capable to hold runoff from rainfall depths up to 136 mm prior to flooding. PCP was the most satisfactory in reducing surface runoff (NVR: 2.81 × 10−3 ± 0.67 × 10−3 m3/m2/mm), which was significantly (p < 0.05) higher (98%) than the traditional pavement. PCP was also very effective in TSS removal (NLR: 244 × 10−5 ± 143 × 10−5 kg/m2/mm), which was an increase of over 80% removal than traditional pavement. IBPG (NLR: 7.14 × 10−5 ± 7.19 × 10−5 kg/m2/mm) showed a significantly (p < 0.05) higher (46%) BOD5 removal over traditional pavement. These results demonstrate that the type of permeable pavement and the underlying media can significantly influence the runoff reduction and infiltration in this climatic region.

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Section: Water Quality Analysismentioning

confidence: 99%

A Comparison of Three Types of Permeable Pavements for Urban Runoff Mitigation in the Semi-Arid South Texas, U.S.A

Alam

Mahmoud

Jones

et al. 2019

Water

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“…Both the ceramic and cement permeable bricks had organic dissolution phenomena and the steel slag permeable brick did not. Steel slag permeable bricks contain much iron, and iron with a large specific surface area can adsorb dissolved organic matter, which is responsible for the high removal rate of COD [26,27].…”

Section: Results Of the Static Adsorption Experimentsmentioning

confidence: 99%

Comparison of the Decontamination Performance of Three Permeable Bricks: Adsorption and Filtration Experiments

Lin¹,

Yang²,

Chen³

et al. 2020

Pol. J. Environ. Stud.

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To investigate the removal mechanism of pollutants from urban rainfall runoff by permeable brick, ceramic brick, cement brick and steel slag brick were applied to study their decontamination performance. An adsorption experiment with granular materials obtained by crushing the bricks and a filtration experiment with complete bricks were carried out, and suspended solids (SS), chemical oxygen demand (COD), total organic carbon (TOC), dissolved organic carbon (DOC), ammonia nitrogen (NH 4 +-N), total nitrogen (TN), total phosphorus (TP) and heavy metals (Cu, Zn and Pb) in the influent and effluent were measured. The results showed that (I) NH 4 +-N, TN and COD dissolved out from most of the particulate materials during the adsorption process. (II) The filtration performance of permeable bricks for dissolved pollutants such as COD, NH 4 +-N and TN was inferior to that for SS, TP and heavy metals. The soluble substances were difficult to intercept, and the release from the brick materials was the reason for the low removal rate. (III) The compact and dense pore distribution was conducive to the removal of organic carbon particles larger than 0.45 µm, and non-sintered bricks had higher DOC removal than the other bricks because of the flocculation of cement hydration products. The study could offer a new perspective for the decontamination of permeable bricks.

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“…The COD removal rate of the volcanic rock was obviously better than those of zeolite, iron filings and gravel, mainly due to the high content of Fe 2 O 3 in volcanic rock [31,32], which had good adsorption of the COD. The removal rate between the volcanic rocks and gravel differed by 25.58% in the case of the same diameter, indicating that the adsorption properties of the materials played a key role in the COD removal and that adding fillers rich in Fe 2 O 3 could improve the removal rate of COD.…”

Section: Water Purification Effectiveness Of Different Materialsmentioning

confidence: 93%

A Novel Structure Applied to the Permeable Brick Paving System and its Decontamination Performance

Lin¹,

Yang²,

Chen³

et al. 2020

Pol. J. Environ. Stud.

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To improve the pollutant removal efficiency of the permeable brick paving system, a novel structure applied to the base layer was introduced, and its decontamination performance was researched. Suspended solids (SS), chemical oxygen demand (COD), ammonia nitrogen (NH 4 +-N), total nitrogen (TN), total phosphorus (TP) and heavy metals (Cu, Zn, and Pb) in the influent and effluent were measured, and the role and mechanism of the fillers inside the novel structure were discussed by changing the type and size of the fillers. The results showed that the removal efficiency of the system using the frame structure was slightly lower than that of the cement concrete block. The removal efficiency results using different particles and materials showed that (I) The permeable brick system filled with small-diameter gravel was more effective than a system filled with large-diameter gravel, and the graded gravel of 3-15cm exerted multiple filtering effects, owning the same effectiveness as the gravel with particles sizes of 3-5 cm. (II) The addition of zeolite and iron filings in the framework could effectively reduce NH 4 +-N and NO 3-N, while the addition of fillers such as volcanic rocks rich in iron oxides improved the adsorption effect of COD. The study provides a new and more environmentally friendly alternative for the base layer of permeable brick paving system.

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Reduction of Urban Storm-Runoff Pollution Using Porous Concrete Containing Iron Slag Adsorbent

Cited by 28 publications

References 22 publications

A Comparison of Three Types of Permeable Pavements for Urban Runoff Mitigation in the Semi-Arid South Texas, U.S.A

A Comparison of Three Types of Permeable Pavements for Urban Runoff Mitigation in the Semi-Arid South Texas, U.S.A

Comparison of the Decontamination Performance of Three Permeable Bricks: Adsorption and Filtration Experiments

A Novel Structure Applied to the Permeable Brick Paving System and its Decontamination Performance

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