Removing heavy metals using permeable pavement system with a titanate nano-fibrous adsorbent column as a post treatment

Sounthararajah, Danious Pratheep; Loganathan, P.; Kandasamy, Jaya; Vigneswaran, S.

doi:10.1016/j.chemosphere.2016.11.045

Cited by 50 publications

(33 citation statements)

References 21 publications

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“…[63] Permeable pavements have been shown to reduce stormwater pollutants including heavy metals, motor-oil, sediments and some nutrients. [74,[92][93][94][95] However, the nutrient removal capabilities of permeable pavements are less understood [66] with some studies [74,84,96,97] reporting varying results. Day et al [96] ; Bean et al [74] and Gilbert and Clausen [97] reported removal of total phosphorous (TP)…”

Section: Water Quality/ Environmental Performancementioning

confidence: 99%

Technological Review of Permeable Pavement Systems for Applications in Small Island Developing States

Monrose

Tota-Maharaj

2018

CLEAN Soil Air Water

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This paper presents a technological review of permeable pavement systems (PPS) for applications in urban areas of small island developing states (SIDS). This review includes a literature survey of PPS, challenges and opportunities of climate change and urban development in SIDS and key aspects worth considering for widespread acceptance and use of PPS in SIDS. SIDS comprise of several nations located across the Atlantic, Pacific and Indian Oceans and the Caribbean, Mediterranean and South China seas. They are particularly susceptible to the effects of climate change and increasing urbanisation. Urban stormwater management and flooding are often serious challenges faced by authorities in most SIDS. PPS are resilient infrastructure which can assist in mitigating flooding by reducing runoff and peak flows and improving the landscape perviousness. PPS can further improve stormwater runoff quality to receiving natural waters by reducing pollutant loadings of suspended solids, heavy metals and hydrocarbons. Unlike most territorial states, the geographical and geologically confined nature of most SIDS present unique parameters for consideration when designing permeable pavements for SIDS. This literature survey found that some of the most important parameters include traffic loads, cost, construction aggregate choice and availability, permeability of existing soil at the intended location, depth of water table, potential for groundwater contamination, slope of the pavement, stormwater reuse option, clogging, maintenance and support from policy makers. Continued practical research into the use of permeable pavements for urban runoff management in SIDS is ongoing with the expectation of PPS being utilised in many SIDS.

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Section: Water Quality/ Environmental Performancementioning

confidence: 99%

Technological Review of Permeable Pavement Systems for Applications in Small Island Developing States

Monrose

Tota-Maharaj

2018

CLEAN Soil Air Water

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“…In recent years, permeable pavements have become one of the most frequently used low-impact development (LID) techniques [1,2]. This infiltration-based technology consists of structural layers with relatively high porosity to allow rainwater to pass through its surface and underlying layers, including a permeable pavement surface, aggregate subbases, and sometimes including geotextiles and underdrains, eventually infiltrating into the natural soil or discharging into a drainage system [3,4].…”

Section: Introductionmentioning

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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“…Following technological improvements and different industries growth in number, wastewater from industrial processes counts as a serious threat to the environment. Heavy metal salts produced in various industrial processes and carried with these effluents enter into the environment with undesirable impacts on food chain organisms and human .…”

Section: Introductionmentioning

confidence: 99%

Response surface methodology for optimization of simultaneous Cr (VI) and as (V) removal from contaminated water by nanofiltration process

Mojarrad

Noroozi

Zeinivand

et al. 2017

Env Prog and Sustain Energy

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This article is carried out to investigate the optimal operating condition for nanofiltration (NF) process for the simultaneous removal of chrome (VI) and arsenic (V) ions from contaminated water in which effects of various operating conditions, for example, Cr concentration (0.05, 0.5, 5), As concentration (0.01, 0.1, 1), pH (5, 7, 9), and recovery rate (40, 60, 80%), are investigated. The design of experiments is carried out using response surface method (Box-Behnken design). The results show that by increasing pH and decreasing recovery rate, the removal rate of chrome and arsenic ions increase. With an increase in chrome and arsenic concentration, arsenic removal efficiency increases, whereas, the chrome removal efficiency decreases to 65.5%. The pH is the main parameter influencing the removal rate. There is an adequate agreement between real data and that obtained from the models (R 2 was found to be 0.992 and 0.962, for Cr (VI) and As (V) rejection, respectively). The optimum levels of a chrome concentration of 0.545 mg/L, pH of 9, arsenic concentration of 0.172 mg/L and recovery rate of 42% is applied in predicting the Arsenic and chrome removal efficiency of 99.1% and 83.8%, respectively.

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Removing heavy metals using permeable pavement system with a titanate nano-fibrous adsorbent column as a post treatment

Cited by 50 publications

References 21 publications

Technological Review of Permeable Pavement Systems for Applications in Small Island Developing States

Technological Review of Permeable Pavement Systems for Applications in Small Island Developing States

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

Response surface methodology for optimization of simultaneous Cr (VI) and as (V) removal from contaminated water by nanofiltration process

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