Efficiency of Constructed Wetland Microcosms (CWMs) for the Treatment of Domestic Wastewater Using Aquatic Macrophytes

Kumar, Saroj; Dutta, Venkatesh

doi:10.1007/978-981-10-7284-0_11

Cited by 21 publications

(17 citation statements)

References 110 publications

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“…The outcome indicated that the electrocoagulation method was able to remove COD and colour effectively to enable reuse or direct discharge of the treated effluents. Sivakumar et al (2013) treated raw textile effluent supplied from the final clarifier of Chennai city treatment plant (India) using a CW system planted with Eichhornia crassipes (Mart.) Solms ((common) water hyacinth).…”

Section: -1000mentioning

confidence: 99%

Textile dye wastewater characteristics and constituents of synthetic effluents: a critical review

Yaseen

Scholz

2018

Int. J. Environ. Sci. Technol.

1,314

416

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Textile industries are responsible for one of the major environmental pollution problems in the world, because they release undesirable dye effluents. Textile wastewater contains dyes mixed with various contaminants at a variety of ranges. Therefore, environmental legislation commonly obligates textile factories to treat these effluents before discharge into the receiving watercourses. The treatment efficiency of any pilot-scale study can be examined by feeding the system either with real textile effluents or with artificial wastewater having characteristics, which match typical textile factory discharges. This paper presents a critical review of the currently available literature regarding typical and real characteristics of the textile effluents, and also constituents including chemicals used for preparing simulated textile wastewater containing dye, as well as the treatments applied for treating the prepared effluents. This review collects the scattered information relating to artificial textile wastewater constituents and organises it to help researchers who are required to prepare synthetic wastewater. These ingredients are also evaluated based on the typical characteristics of textile wastewater, and special constituents to simulate these characteristics are recommended. The processes carried out during textile manufacturing and the chemicals corresponding to each process are also discussed.

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Section: -1000mentioning

confidence: 99%

Textile dye wastewater characteristics and constituents of synthetic effluents: a critical review

Yaseen

Scholz

2018

Int. J. Environ. Sci. Technol.

1,314

416

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“…Hollow brick crumbs and fly ash are also superior in the removal of TN and TP. The constructed wetland with hollow brick crumbs mixed with fly ash can cut down 89% of NH4+-N and 81% of TP [28,76]. Slag was effective for the treatment of wastewater in constructed wetlands, and the removal rate of P was maintained at a high level [57,77,78].…”

Section: Calcitementioning

confidence: 99%

The Use of Constructed Wetland for Mitigating Nitrogen and Phosphorus from Agricultural Runoff: A Review

Zheng

Xiao

et al. 2021

Water

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The loss of nitrogen and phosphate fertilizers in agricultural runoff is a global environmental problem, attracting worldwide attention. In the last decades, the constructed wetland has been increasingly used for mitigating the loss of nitrogen and phosphate from agricultural runoff, while the substrate, plants, and wetland structure design remain far from clearly understood. In this paper, the optimum substrates and plant species were identified by reviewing their treatment capacity from the related studies. Specifically, the top three suitable substrates are gravel, zeolite, and slag. In terms of the plant species, emergent plants are the most widely used in the constructed wetlands. Eleocharis dulcis, Typha orientalis, and Scirpus validus are the top three optimum emergent plant species. Submerged plants (Hydrilla verticillata, Ceratophyllum demersum, and Vallisneria natans), free-floating plants (Eichhornia crassipes and Lemna minor), and floating-leaved plants (Nymphaea tetragona and Trapa bispinosa) are also promoted. Moreover, the site selection methods for constructed wetland were put forward. Because the existing research results have not reached an agreement on the controversial issue, more studies are still needed to draw a clear conclusion of effective structure design of constructed wetlands. This review has provided some recommendations for substrate, plant species, and site selections for the constructed wetlands to reduce nutrients from agricultural runoff.

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“…Constructed wetlands (CWs) are promising wastewater treatment alternatives due to the numerous ecological benefits, low operational and maintenance costs as well as low energy requirements (Kadlec and Wallace, 2008;Kumar and Dutta, 2019). This technology is potentially used for treating wastewater in tropical areas due to the abundant biodiversity, warm temperature and high humidity (Nakase et al, 2019;de Rozari et al, 2020a,b;Konnerup et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

The use of pumice amended with sand media for domestic wastewater treatment in vertical flow constructed wetlands planted with lemongrass (Cymbopogon citratus)

Rozari

Krisnayanti

Refli

et al. 2021

Heliyon

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The performance efficiency in constructed wetlands (CWs) technology is primarily affected by the media material and the types of plants used. Recently, investigations into the usage of local materials and plants in CWs has increased. Pumice is a material which is potential used as a media. However, research on amendment of pumice with other media in CWs is still limited. Therefore, this study aims to evaluate the potential of pumice amended with sand media and planted with lemongrass (Cymbopogon citratus) in CWs to remove organic matter, suspended solids, nutrients, and coliform. The adsorbents were characterized using X-ray diffraction, FTIR and XRF followed by adsorption experiments for PO 4 -P. Furthermore, Six vertical flow (VF) mesocosms with a diameter of 10.2cm and 55cm depth were established over six months. The treatments were based on percentage of sand media amended with pumice and planted with lemongrass. Furthermore, the barren media were applied to investigate the effect of lemongrass. The loading rate of domestic wastewater into the VF mesocosms was 2 L/day while inflows and outflows were determined for nutrients, organic matter, suspended solids and coliform. The adsorption of PO 4 -P followed the Langmuir model with adsorption capacity was 0.089 and 0.067 mol/g for pumice and sand, respectively. The results also showed that the removal efficiency of TSS, COD, NO 3 -N, NO 2 -N, PO 4 -P and total coliforms were in the range of 93.7-97.3 %, 52-83 %, 63-86 %, 51-74%, 81-88 % and 92-97 %, respectively. Based on the results, the highest removal efficiency was observed in the sand media amended with 50 % pumice and planted with lemongrass, while the lowest was found in the barren sand media.

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Efficiency of Constructed Wetland Microcosms (CWMs) for the Treatment of Domestic Wastewater Using Aquatic Macrophytes

Cited by 21 publications

References 110 publications

Textile dye wastewater characteristics and constituents of synthetic effluents: a critical review

Textile dye wastewater characteristics and constituents of synthetic effluents: a critical review

The Use of Constructed Wetland for Mitigating Nitrogen and Phosphorus from Agricultural Runoff: A Review

The use of pumice amended with sand media for domestic wastewater treatment in vertical flow constructed wetlands planted with lemongrass (Cymbopogon citratus)

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