The potential of phycoremediation in controlling eutrophication in tropical lake and reservoir: a review

Razak, Siti Balqis Abd.; Sharip, Zati

doi:10.5004/dwt.2020.25078

Cited by 7 publications

(6 citation statements)

References 64 publications

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“…Little research has been conducted on the efficiency of phycoremediation in reducing nutrient levels in eutrophic lakes. On the other hand, Razak and Sharip [ 30 ] discussed the promise of algal-based approaches for the resolution of lake eutrophication. They reported that wastewater is the primary focus of most phycoremediation studies.…”

Section: Algae As An Organic Biodegradationmentioning

confidence: 99%

A Review of Microalgae- and Cyanobacteria-Based Biodegradation of Organic Pollutants

et al. 2022

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This review proposes a new bioremediation method based on the diverse functionalities of algae. A greenway for cleansing wastewater is more ecologically friendly and environmentally sustainable than prior methods with other bacteria. New bioremediation technology employing algae and cyanobacteria for the removal of a wide range of organic contaminants is reasonable and has great potential. The prevalence of organic contaminants in aquatic habitats may endanger the health and well-being of several marine creatures. Agriculture, industry, and household trash are just a few of the human-caused sources of organic pollutants that contaminate waterways around the world. Before wastewater can be released into waterways, it must be cleaned. Algae-based wastewater treatment systems are becoming increasingly popular because of their environmental sustainability and lack of secondary pollutants. According to the kind of pollutant, the physicochemical properties of wastewater, and the algal species, algae and cyanobacteria can absorb and accumulate a wide spectrum of organic pollutants at different rates. In addition, phytoremediation is a cost-effective alternative to conventional treatments for degrading organic contaminants. Phycoremediationally produced algal biomass may also be an important part of the bioenergy value chain. This article focuses on microalgae and cyanobacteria species, which may remove many organic contaminants from water systems.

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Section: Algae As An Organic Biodegradationmentioning

confidence: 99%

A Review of Microalgae- and Cyanobacteria-Based Biodegradation of Organic Pollutants

et al. 2022

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“…Phycoremediation, a technique that uses algal species (macroalgae or microalgae) to sequester, remove, break down, biotransform or metabolise pollutants such as petroleum hydrocarbons from contaminated water environments [124][125][126]. As illustrated in Figure 16, this technique is one of the effective methods used in water pollution treatment due to its high efficiency and low-cost usage [127]. Algae can accumulate and degrade toxic pollutants and organic compounds such as petroleum hydrocarbons, biphenyls, pesticides, and phenolics [125].…”

Section: Phycoremediationmentioning

confidence: 99%

“…Studies have shown that heavy metals can be sequestered in the polyphosphate body of algae and serve for detoxification and storage [130]. Phycoremediation was successfully used to reduce nutrient levels in wastewater treatment, and the technique includes algal biofilm, algal turf scrubbers, high-rate algal ponds, and immobilised algae [127]. Several algae species such as Chlamydomonas, Chlorella, Botryococcus and Phormidium are involved in phycoremediation.…”

Section: Phycoremediationmentioning

confidence: 99%

Biological Treatments for Petroleum Hydrocarbon Pollutions: The Eco-Friendly Technologies

Ossai¹,

Hamid²,

Hassan³

2022

Hazardous Waste Management

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Anthropogenic activities introduce petroleum hydrocarbons into the environments, and the remediation of the polluted environments using conventional physicochemical, thermal, and electromagnetic technologies is a challenging task, laborious work, and expensive. The ecotoxicological effects and human health hazards posed by petroleum hydrocarbon pollutions gave rise to the call for “green technologies” to remove petroleum hydrocarbon contaminants from polluted environments. It is imperative to transition from the conventional physicochemical treatments methods that are expensive to more eco-friendly biological treatment technologies that reduce energy consumption, chemicals usage, cost of implementation and enables more sustainable risk-based approaches towards environmental reclamation. The chapter summarises and gives an overview of the various biological treatment technologies adapted to the remediation of hazardous petroleum hydrocarbon polluted sites. Biological treatment technologies include; bioremediation, biostimulation, bioaugmentation, bioattenuation, bioventing, biosparging, bioslurry, biopiling, biotransformation, landfarming, composting, windrow, vermiremediation, phytoremediation, mycoremediation, phycoremediation, electrobioremediation, nanoremediation, and trichoremediation. They are green technology approaches widely adopted, scientifically defensible, sustainable, non-invasive, ecofriendly, and cost-efficient in the remediation of petroleum hydrocarbons polluted environments compared to the physicochemical, thermal, and electromagnetic treatments technologies, which are rather destructive and expensive. The chapter provides detailed illustrations representing the various biological treatment technologies for a comprehensive understanding and successful implementation with their subsequent benefits and constraints.

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“…Recently, Chlorella vulgaris cultivated in the altered BG-11 nutrient medium is reported to reduce the salinity of brackish water by up to 30% [12]. However, elevated NaCl concentration (>30g/L) and Na 2 CO 3 (9g/L) are reported to inhibit C. vulgaris [13]. Further, microalgae-based phycoremediation technology has been employed to reduce nutrient and salinity levels in lakes [13] as well as seawater [14].…”

Section: Introductionmentioning

confidence: 99%

“…However, elevated NaCl concentration (>30g/L) and Na 2 CO 3 (9g/L) are reported to inhibit C. vulgaris [13]. Further, microalgae-based phycoremediation technology has been employed to reduce nutrient and salinity levels in lakes [13] as well as seawater [14]. The present study is reported first time to investigate the feasibility of C. pyrenoidosa to grow in saline CME for salinity removal due to microalgae potential to grow at medium to suboptimal salinity zone.…”

Section: Introductionmentioning

confidence: 99%

The Feasibility Study of Green Microalgae Assisted Coal Mine Effluent Desalination

Rawat¹,

Kumar²

2022

Proceedings of the Conference BioSangam 2022: Emerging Trends in Biotechnology (BIOSANGAM 2022)

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Carbon-neutral sustainable approaches are highly demanding in the coal energy sector. Coal mine effluent disposal is a severe challenge with crucial concern issues of salinity hazard and heavy metal contamination due to long-duration water and coal interaction. The medium to the high salinity of coal mine effluent leads towards irrigation unsuitability due to the negative impact upon infiltration and permeability of nutrients from the soil to plant. Focusing on the international irrigation water quality standards given by the Food and Agriculture Organization (FAO) of the United Nations, most coal mine effluents are considered negatively impacting crops, soil fertility, groundwater, and aquatic life. Therefore, the current study investigates the direct cultivation suitability of Chlorella pyrenoidosa to simultaneously treat coal mine effluent for salinity removal and biomass production. Initially, C. pyrenoidosa culture adaptation in varying concentrations of coal mine effluents (25%–100%) in coal mine effluent, which are collected from two different points of coal mine named as coal mine effluent 1 (CME1) and coal mine effluent 2 (CME2). Evaluating C. pyrenoidosa growth kinetics, it was observed that the doubling time extended from 2.25 days (100% BG-11 as a medium; control) to 4.33 days (100% CME as a medium). Interestingly, the highest value for biomass production was 1.78 ± 0.12 g/ L with 25% CME 1 supplemented with essential growth nutrients; this value lies near 100% BG11 supplemented growth, 1.81 ± 0.05 g/L. In the current study, taking salinity removal as a prime concern, 100% utilization of CME-2 in place of BG-11 medium was very significant for salinity reduction from 4.80 ± 0.50 mS/cm (initial) to 0.98 ± 0.02 mS/cm (final) during 14 days batch growth. In continuation of that, the significant finding was salinity reduction of both samples (50% and 75% sample) to the level of 0.7 mS/ cm, which lies under the FAO guidelines for irrigation. Present findings also revealed an alternative to conventional processes, i.e., thermal and membrane desalination. Microalgae-assisted desalination is a novel, energy-efficient, eco-sustainable, cost-effective, and long-term operational approach. It has good potential to treat medium to sub-optimal salinity of coal mine effluent coupled with high-value biomass production.

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The potential of phycoremediation in controlling eutrophication in tropical lake and reservoir: a review

Cited by 7 publications

References 64 publications

A Review of Microalgae- and Cyanobacteria-Based Biodegradation of Organic Pollutants

A Review of Microalgae- and Cyanobacteria-Based Biodegradation of Organic Pollutants

Biological Treatments for Petroleum Hydrocarbon Pollutions: The Eco-Friendly Technologies

The Feasibility Study of Green Microalgae Assisted Coal Mine Effluent Desalination

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