Treatment of tannery wastewater in a pilot-scale hybrid constructed wetland system in Bangladesh

Saeed, Tanveer; Afrin, Rumana; Muyeed, Abdullah Al; Sun, Guang–Zhen

doi:10.1016/j.chemosphere.2012.04.055

Cited by 171 publications

(38 citation statements)

References 35 publications

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“…Among, current wastewater treatment technologies, the constructed wetland technology is considered as an eco-friendly, low cost technology with some distinct advantages such as; low operation and maintenance cost, as well as provide aesthetic value, generate usable plant biomass, and help support wildlife habitat (Poe et al, 2003;Solano et al, 2004;Carty et al, 2008;Shalaby et al, 2008). Constructed wetlands are effectively utilized worldwide for the treatment of various wastewater types such as; domestic wastewater (Vymazal, 2005;Song et al, 2009), food processing (Comino et al, 2011), fertilizer and chemical manufacturing (Domingos et al, 2007), tannery wastewater (Saeed et al, 2012), refinery effluent (Wallace and Kadlec, 2005), as well as for the elimination of emerging organic contaminants (HijosaValsero et al, 2010;Ávila et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

A comparative study of macrophytes influence on wastewater treatment through subsurface flow hybrid constructed wetland

Sehar

Sumera

Naeem

et al. 2015

Ecological Engineering

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Section: Introductionmentioning

confidence: 99%

A comparative study of macrophytes influence on wastewater treatment through subsurface flow hybrid constructed wetland

Sehar

Sumera

Naeem

et al. 2015

Ecological Engineering

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“…Previous studies [25][26][27][28] have employed peat in constructed wetland applications, but most of these only focused on nutrient removal. As an organic substrate with relative acidic properties, peat could also be used to attenuate high pH wastewater such as alkaline mine drainage and algal-induced, elevated pH secondary effluents.…”

Section: Introductionmentioning

confidence: 99%

Peat as Substrate for Small-Scale Constructed Wetlands Polishing Secondary Effluents from Municipal Wastewater Treatment Plant

Jin

Carlos

McConnell

et al. 2017

Water

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Abstract:With the recent development of constructed wetland technology, it has become a mainstream treatment technology for the mitigation of a variety of wastewaters. This study reports on the treatment performance and pH attenuation capacity of three different configurations of small-scale on-site surface flow constructed wetlands (SFCW): T1 (Peat + Typha latifolia), T2 (T. latifolia alone), and T3 (Peat alone) treating secondary effluent from the Amherstview Water Pollution Control Plant (WPCP) for two treatment periods (start-up period and operational period). The aim of this study was to compare the nutrients removal efficiencies between the different treatments, as well as to evaluate the effects of substrate and vegetation on the wetland system. For a hydraulic retention time of 2.5 days, the results showed that all treatment systems could attenuate the pH level during both the start-up and operational periods, while significant nutrient removal performance could only be observed during the operational period. Peat was noted to be a better SFCW substrate in promoting the removal of nitrate (NO 3 -N), total nitrogen (TN), and phosphorus. The addition of T. latifolia further enhanced NO 3 -N and TN removal efficiencies, but employing T. latifolia alone did not yield effluents that could meet the regulatory discharge limit (1.0 mg/L) for phosphorus.

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“…In this regard, the most commonly used macrophyte was Phragmites australis for tannery wastewater treatment [34][35][36][37][38]. Calheiros et al [39,40] have extensively studied various aspects of tannery effluent treatment through CWs by using Arundo donax, C. indica, P. australis, Sarcocornia fruticosa, and Stenotaphrum secundatum.…”

Section: Introductionmentioning

confidence: 99%

Unveiling the Potential of Novel Macrophytes for the Treatment of Tannery Effluent in Vertical Flow Pilot Constructed Wetlands

Ashraf

Naveed

Afzal

et al. 2020

Water

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The phytoremediation potential of macrophytic species has made them an inevitable component of constructed wetlands (CWs) for the treatment of industrial effluents. The macrophytes must have tolerance for the harsh conditions imposed by effluents for an effective establishment of the CW system. In this context, the basic purpose of this work was to investigate the efficacy of five indigenous emergent macrophytes (Brachiaria mutica, Canna indica, Cyperus laevigatus, Leptochloa fusca, and Typha domingensis) for the remediation of tannery effluent in vertical subsurface flow CWs. The ability of each macrophytic species to tolerate pollution load and to remove pollutants from the effluent was assessed. The effect of tannery effluent on the survival and growth of macrophytes was also studied. The treated tannery effluent samples were analyzed for electrical conductivity (EC), pH, biochemical oxygen demand (BOD5), chemical oxygen demand (COD), total dissolved solids (TDS), total suspended solids (TSS), chlorides (Cl−), sulphates (SO42−), oil and grease, and Cr levels. All of the studied macrophytes significantly decreased the pollution load of tannery effluent, and the higher nutrient content of effluent stimulated their growth without any signs of negative health effects. Leptochloa fusca and T. domingensis performed better in removing pollutants and showed higher growth rates and biomass than other tested macrophytes and can be considered preferred species for use in CWs treating tannery effluent. Brachiaria mutica showed morphologically better results than C. indica and C. laevigatus.

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Treatment of tannery wastewater in a pilot-scale hybrid constructed wetland system in Bangladesh

Cited by 171 publications

References 35 publications

A comparative study of macrophytes influence on wastewater treatment through subsurface flow hybrid constructed wetland

A comparative study of macrophytes influence on wastewater treatment through subsurface flow hybrid constructed wetland

Peat as Substrate for Small-Scale Constructed Wetlands Polishing Secondary Effluents from Municipal Wastewater Treatment Plant

Unveiling the Potential of Novel Macrophytes for the Treatment of Tannery Effluent in Vertical Flow Pilot Constructed Wetlands

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