Green microalgae for combined sewage and tannery effluent treatment: Performance and lipid accumulation potential

Saranya, D.; Shanthakumar, S.

doi:10.1016/j.jenvman.2019.04.031

Cited by 52 publications

(11 citation statements)

References 52 publications

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“…All the experiments were performed using filtered wastewater to reduce the toxicity of the chemicals on biological systems. Microalgae has been demonstrated to reduce 92.6% of COD from domestic wastewater using Oscillatoria tenuis in 7 days (Cheng et al 2013) while 97% and 94% of COD removal were reported in textile and tannery effluent using microalgal culture of C. vulgaris (Saranya and Shanthakumar 2019). For surgical cotton processing wastewater, COD removal of 83% (Fig.…”

Section: Resultsmentioning

confidence: 96%

Carbon dissipation from surgical cotton production wastewater using macroalgae, microalgae, and activated sludge microbes

Babu

Sharma

Matheswaran

2021

Environ Sci Pollut Res

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Surgical cotton production has drastically been increased in the past few years due to excessive use by medical health professionals especially in countries like India, which is among the top three exporters of cotton worldwide. The effluent generated from surgical cotton industries differ from textile effluents by the conspicuous absence of dyeing chemicals. This wastewater has a high concentration of suspended particles, COD, dissolved ions, organic carbon, and alkaline pH. Several studies have been published on the treatment of textile effluents and the degradation of dyeing chemicals, while the treatment studies on surgical cotton wastewater have been rarely reported in spite of their potential to cause pollution in receiving land/water bodies. Activated sludge microbes have been extensively studied and well documented in the treatment of several industrial effluent but does not match to the production of valuable biomass from algae. The global energy demand has prompted the scientific community to investigate and explore the possibility of using algae for energy production with simultaneous wastewater treatment. To the best of the authors' knowledge, no research articles have been published which compare the effectiveness of activated sludge microorganisms, microalgae, and macroalgae in removing contaminants from real wastewater. To date, there is a knowledge gap in understanding and selecting the right choice of biological system for effective and economical effluent treatment. In an attempt to minimize this gap, carbon removal by microalgae, macroalgae, and activated sludge microbes were investigated on real effluent from surgical cotton industries. It was observed that the strain of Chlorella vulgaris could dissipate 83% of COD from real wastewater, while consortia of macroalgae (consisting predominantly of Ulvaceae and Chaetomorpha) and activated sludge microbes could remove 81% and 69% of the carbon, respectively. The microalgal growth (in terms of wet weight) increased from 0.15 to 0.3 g, whereas the macroalgal wet weight increased from 1.5 to 3 g in over 7 days of batch experiments conducted in triplicates. This indicated the superlative performance of microalgae over activated sludge microbes in carbon dissipation. KeywordsSurgical cotton wastewater • Chlorella vulgaris • Ulva lactuca and Chaetomorpha • Activated sludge microbes • Microalgae and macroalgae

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Section: Resultsmentioning

confidence: 96%

Carbon dissipation from surgical cotton production wastewater using macroalgae, microalgae, and activated sludge microbes

Babu

Sharma

Matheswaran

2021

Environ Sci Pollut Res

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“…Additionally, Calheiros, Rangel, & Castro tested a subsurface horizontal flow artificial wetland for the treatment of wastewater with high salinity (2.2-6.6 g Cl -L -1 ) from a leather company in Portugal, these were planted with Arundo donax and Sarcocornia fructicosa, both wetlands performed equally for COD (65% removal), BOD 5 (73%), TSS (65%), NH 4 -N (73%) and TKN (75%) while removal of TP was slightly higher in Arundo wetland (83%) as compared to Sarcocornia wetland (79%) [2]. Finally, in this study, they evaluated the ability of Chlorella vulgaris to remove organic matter, nitrogen and phosphorus by finding removals between 99% and 65% removal of these parameters [21].…”

Section: Development Of Plantsmentioning

confidence: 95%

Artificial wetland planted with Limonium Perezzi, for the treatment of wastewater from tanning

Castillo-Castañeda

Valencia

2020

redin

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The wastewater from leather tanning contains different types of pollutants depending on the internal process that is carried out, in particular, the riparian and tanning stages provide the greatest contaminant load within the process, in terms of organic matter, grease and oils, chlorides, chromium, sulfides among other substances. This study analyzed the efficiency of a biological treatment system, consisting of artificial wetlands of horizontal subsurface flow, in order to evaluate the removal of salinity and organic load present in the water produced during the process of soaking leathers. Two prototypes were tested, one planted with Limonium perezzi and the other unplanted as a control parameter, the wetlands were operated for 32 days. The results show that the planted wetland removes 49.2% of the initial chloride present (44,414.8 mgCl-/L) in the water and 86.2% of the total organic carbon (755.9 mgC/L). It was demonstrated that artificial wetlands are still a viable and efficient alternative in terms of organic load removal, on the other hand, the selected plant showed a very good performance in the treatment of wastewater because of its high tolerance to high concentrations of salt dissolved in the water, reaching perspiration of sodium chloride crystals through the leaves and stem.

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“…Yang et al [38] assessed that to generate 1 kg of microalgal biofuel, 3726 kg of water is necessary, and this prerequisite can be reduced by 90% via wastewater utilization. Saranya and Shanthakumar [39] investigated the performance of Chlorella vulgaris (NRMCF0128) and Pseudochlorella pringsheimii (VIT_SDSS) using combined sewage and tannery effluent at varying dilution. At a higher dilution (up to 30%) of tannery effluent both the species exhibited a drop in pollutant concentration: >65% for NH 3 -N, 100% for PO 4 -P, >63% for COD, and >80% for total chromium.…”

Section: Selection Of Proper Growth Mediamentioning

confidence: 99%

A Review on Synchronous Microalgal Lipid Enhancement and Wastewater Treatment

Barua

Munir

2021

Energies

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Microalgae are unicellular photosynthetic eukaryotes that can treat wastewater and provide us with biofuel. Microalgae cultivation utilizing wastewater is a promising approach for synchronous wastewater treatment and biofuel production. However, previous studies suggest that high microalgae biomass production reduces lipid production and vice versa. For cost-effective biofuel production from microalgae, synchronous lipid and biomass enhancement utilizing wastewater is necessary. Therefore, this study brings forth a comprehensive review of synchronous microalgal lipid and biomass enhancement strategies for biofuel production and wastewater treatment. The review emphasizes the appropriate synergy of the microalgae species, culture media, and synchronous lipid and biomass enhancement conditions as a sustainable, efficient solution.

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Green microalgae for combined sewage and tannery effluent treatment: Performance and lipid accumulation potential

Cited by 52 publications

References 52 publications

Carbon dissipation from surgical cotton production wastewater using macroalgae, microalgae, and activated sludge microbes

Carbon dissipation from surgical cotton production wastewater using macroalgae, microalgae, and activated sludge microbes

Artificial wetland planted with Limonium Perezzi, for the treatment of wastewater from tanning

A Review on Synchronous Microalgal Lipid Enhancement and Wastewater Treatment

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