Treating a lignite pyrolysis wastewater in a constructed subsurface flow wetland

Wießner, Arndt; Kuschk, Peter; Stottmeister, U.; Struckmann, D; Jank, M.

doi:10.1016/s0043-1354(98)00310-8

Cited by 20 publications

(8 citation statements)

References 7 publications

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“…These plants were selected due to their known ability to accumulate high concentrations of nutrients from the water through their extensive root network (Summerfelt et al, 1999;Wißner et al, 1999;Batty and Younger, 2004). Vetiveria zizanoides was procured from Badarpur thermal power plant, Delhi, wherein they were cultivated on fly ash inoculated with specific mycorrhizal species, making these plants more efficient towards drawing nutrients from available and nonavailable parts (TERI project report no.…”

Section: Methodsmentioning

confidence: 99%

Nitrogen Removal from Biomethanated Spentwash Using Hydroponic Treatment Followed by Fungal Decolorization

Pant

Adholeya

2009

Environmental Engineering Science

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A two-stage sequential treatment for anaerobically digested wastewater from a cane molasses-based distillery is proposed. In the first step, the wastewater was treated in a hydroponic based system using two plant species (Vetiveria zizanioides and Phragmites kharka) to reduce the high nitrogen (total Kjeldahl nitrogen) content of the effluent. Roots of these plants showed profuse growth on effluent. Nitrogen removal to the tune of 84% was achieved. When this hydroponically treated effluent was subjected for treatment by fungal isolates, 86.33% decolorization was obtained with Pleurotus florida Eger EM1303 followed by Aspergillus flavus TERIDB9 (74.67%), with significant reduction in chemical oxygen demand (COD) as well. The suggested method is thus important from the point of treating distillery wastewaters without the need of high dilutions and addition of supplementary carbon sources.

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Section: Methodsmentioning

confidence: 99%

Nitrogen Removal from Biomethanated Spentwash Using Hydroponic Treatment Followed by Fungal Decolorization

Pant

Adholeya

2009

Environmental Engineering Science

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“…There are numerous cases where constructed wetland treatment systems have been shown to remove metals and other contaminants such as sulphates and heavy metals from effluent solutions (e.g. Kleinman 1990, Bates 1994, Hedin et al 1994, Christensen et al 1996, Debusk et al 1996, Greenway and Simpson 1996, Michaelis 1998, McCarthy et al 1999, Treacy and Timpson 1999, Wiebner et al 1999, Chang et al 2000, Drizo et al 2000, Huang et al 2000, Mashauri et al 2000, Pinney et al 2000, White et al 2000, Groudev et al 2001a,b,c d, Ye et al 2001.…”

Section: Introductionmentioning

confidence: 99%

A laboratory treatment study of acid mine water of wetlands with emergent macrophyte (Typha angustata)

Sheoran

2006

International Journal of Mining, Reclamation and Environment

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Acid mine drainage (AMD) is a serious environmental problem in mining regions throughout the world. In this study laboratory experiments were carried out to test the capacity of 1 m 3 bench-scale wetland test cells of substrate (containing powdered goat manure, wood chips and soil) and well grown emergent macrophyte (Typha angustata) to treat AMD. Artificially simulated AMD experiments were carried out for different water column heights (100, 150 and 200 mm). The performance of the system was evaluated for 24, 48, 72, 96 and 168 hour retention periods. Within a 24 h retention period the pH rose from 2.93 to 6.33 and alkalinity rose from 0 to 230.78 mg/l as CaCO 3 ; electric conductivity decreased by 32.47 to 33.86%; turbidity decreased by 33.33 to 48.35%; sulphate reduced by 26.97 to 30.80%; acidity reduced by 82.22 to 100% and hardness reduction was 20.00 to 31.33%. The percentage of metal removal observed in the treated water was: for Fe 84.22 to 84.84%; for Cu 78.19 to 94.18%; Zn 78.45 to 79.12%; Pb 89.24 to 93.12%; Co 62.65 to 76.67%; Ni 45.27 to 76.46%; Mn 44.28 to 53.77%. It was observed that most of the improvements take place within a 24 h retention period. Efficient removal of pollutants was achieved and residual concentrations in the wetland test cells were decreased below the relevant permissible level subscribed by Bureau of Indian Standards and Ministry of Environment and Forests (MOEF) after 24 hours of retention period (except for lead where the input concentration was higher).

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“…It is mainly through planting, culture aquatic plants or other methods to removal pollutants in polluted water, so that the water pollution has been effectively improved [13][14]. It's a kind of purification method to achieve harmony between human beings and nature [15][16][17][18][19]. Bio-ecological method has been widely used in practical engineering in the United States, Japan and other developed countries.…”

Section: IImentioning

confidence: 99%

Study on Ecological Remediation Method of Purification of Rural Polluted Slow-Flow Water

Xu¹,

Yu²,

Yu³

et al. 2017

Proceedings of the 2016 International Conference on Biological Engineering and Pharmacy (BEP 2016)

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Abstract-Slow-flow water is the main part of rural water, human activities to the semi-enclosed water caused serious pollution. Water bio-ecological remediation method can increase the ecosystem diversity, self purification capacity and system stability.The technology includes adding microorganisms, constructed wetlands, ecological revetment, biological manipulation, remediation of aquatic vegetation, artificial aeration. The ecological remediation technology practice of moist areas in southern China by pollution slow-flow water including: ecological floating island, anaerobic + artificial wetland, underground integrated equipment + ecological floating island, grit chamber + AO + artificial wetland + oxidation pond, constructed wetlands + oxidation pond, anaerobic oxidation + oxidation pond, highly efficient and stable pond. The engineering practices show that the ecological remediation method can effectively purify the pollution of slow-flow water.

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Treating a lignite pyrolysis wastewater in a constructed subsurface flow wetland

Cited by 20 publications

References 7 publications

Nitrogen Removal from Biomethanated Spentwash Using Hydroponic Treatment Followed by Fungal Decolorization

Nitrogen Removal from Biomethanated Spentwash Using Hydroponic Treatment Followed by Fungal Decolorization

A laboratory treatment study of acid mine water of wetlands with emergent macrophyte (Typha angustata)

Study on Ecological Remediation Method of Purification of Rural Polluted Slow-Flow Water

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