A review of potential methods for zooplankton control in wastewater treatment High Rate Algal Ponds and algal production raceways

Montemezzani, Valerio; Duggan, Ian C.; Hogg, Ian D.; Craggs, Rupert J.

doi:10.1016/j.algal.2015.06.024

Cited by 91 publications

(49 citation statements)

References 249 publications

(270 reference statements)

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“…The encysted state of protozoa is often known as protection mechanism against "unfavorable environmental conditions", and is important for many species, in which multiple asexual reproductions can occur [60]. Favorable environmental conditions or food availability for a sufficient period of time can prompt the hatch of diapausing eggs, and their existence is considered as a potential barrier for permanent eradication of zooplankton grazers from High Rate Algal Ponds (HRAPs) [24]. Further analysis for the behavior and dynamics of cyst or eggs is required to verify their effect on microalgal productivity in the culture systems.…”

Section: Discussionmentioning

confidence: 99%

“…Similarly, adjusting culture pH can be a means by which to control Amoeba in Dunaliella and Nannochloris culture, and Oxyrrhis in Chlorella and Chlorococcum culture [23]. A review of the possible physical, chemical and biological methods that can be used in the control of zooplankton in wastewater treatment and algal production raceways has recently been published [24], and there is growing recognition that cultivation systems should be treated as ecosystems in their own right [7,[24][25][26].…”

Section: Introductionmentioning

confidence: 99%

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Contaminating microzooplankton in outdoor microalgal mass culture systems: An ecological viewpoint

Wang

Yuan

et al. 2016

Algal Research

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Contaminating microzooplankton in outdoor microalgal mass culture systems: An ecological viewpoint

Wang

Yuan

et al. 2016

Algal Research

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“…Reduction in microalgae biomass by zooplankton grazing has been a great problem [26], and it has been reported that grazing (e.g. by Rotifera and Cladocera) resulted in sharp and continuous decreases in biomass productivity to approximately 10% in HRAP [27].…”

Section: Cultivation Characteristics Of Indigenous Microalgaementioning

confidence: 99%

Applicability of Mathematical Model for Biomass Production by Indigenous Microalgae Based on Cultivation Characteristics at Different Wastewater Treatment Plants

Takabe

Himeno

Okayasu

et al. 2017

J. of Wat. & Envir. Tech.

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Outdoor biomass production by indigenous microalgae cultivation with treated effluent is strongly and complexly affected by fluctuating environmental conditions and water qualities in wastewater treatment plants (WWTPs), thus, mathematical models are required to discuss production performance. In this study, five-month outdoor cultivations with CO 2 addition were conducted in two WWTPs (A and B) to reveal cultivation characteristics and examine the applicability of a previously developed model to different WWTPs. The limiting factor for microalgae growth in the treated effluent was different between WWTPs A (carbon) and B (phosphorus). Suspended solids (88 mg/L) in the culture at WWTP B were significantly lower than those at WWTP A (113 mg/L) due to phosphorus starvation in the culture at WWTP B. Meanwhile, Chlorophyceae dominated throughout the cultivation period at both WWTPs. The repeatability of the cultivation characteristics by the model at the same WWTP in different years was verified. It was revealed that application of the model to a new WWTP is difficult with regard to some coefficients. However, sensitivity analysis to identify the dominant coefficient affecting biomass productivity in the model and modification of the coefficient based on simple cultivation experiments resulted in the model being applicable to the new WWTP.

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“…Their concentration in known AAFW systems have exceeded 1000 individuals per liter. In addition, due to their high nutritional value, zooplankton is a valuable biomass for downstream processing (Montemezzani et al, 2015). Also Dreissena polymorpha mussels are effective filter-feeders -an individual is capable to filter up to 400 ml of water per hour with high clearance rate for particles sized up to 40 μm (Binelli et al, 2014).…”

Section: General Performancementioning

confidence: 99%

Use of Artificial Aquatic Food-Web for Post-Treatment of Domestic Wastewater in Cold Climate: A Review

Lavrinovičs

Juhna

2017

Journal of Water Security

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Abstract. Eutrophication-promoting phosphorous loads originating from wastewater treatment plants are commonly controlled by chemical precipitation in the tertiary treatment phase. However, this approach is costly and generates additional waste. Therefore, inexpensive and sustainable methods for wastewater post-treatment are wanted. The artificial aquatic food-web that performs wastewater phycoremediation by algae and subsequent biomass harvest by filter-feeding organisms not only requires low energy consumption but also produces biomass for treatment process cost recovery. Still, the knowledge on its performance at different scales and under different climates are limited. In this review, the application possibilities of the artificial aquatic food-web for domestic wastewater post-treatment is discussed, focusing on its use in cold climate regions. Considering the reduced biological activity of aquatic organisms at low ambient temperature, possible solutions for its performance and prospect application at low temperatures are suggested. Finally, directions for future research regarding the practical use of artificial aquatic food-web are highlighted.

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A review of potential methods for zooplankton control in wastewater treatment High Rate Algal Ponds and algal production raceways

Cited by 91 publications

References 249 publications

Contaminating microzooplankton in outdoor microalgal mass culture systems: An ecological viewpoint

Contaminating microzooplankton in outdoor microalgal mass culture systems: An ecological viewpoint

Applicability of Mathematical Model for Biomass Production by Indigenous Microalgae Based on Cultivation Characteristics at Different Wastewater Treatment Plants

Use of Artificial Aquatic Food-Web for Post-Treatment of Domestic Wastewater in Cold Climate: A Review

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