Removal of micro-organisms in a small-scale hydroponics wastewater treatment system

Ottoson, Jakob; Norström, Anna; Dalhammar, Gunnel

doi:10.1111/j.1472-765x.2005.01689.x

Cited by 16 publications

(12 citation statements)

References 26 publications

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“…The great majority of studies on hydroponics with reclaimed water are at laboratory scale. Small‐scale hydroponics wastewater treatment systems are capable of removing microorganisms satisfactorily, including virus and (oo)cyst process indicators, thus hydroponics can be an alternative to conventional wastewater treatment (Ottoson et al ., 2005). Ndulini et al .…”

Section: Hydroponic Systems With Wastewatermentioning

confidence: 99%

Hydroponics with wastewater: a review of trends and opportunities

Cifuentes‐Torres

Mendoza‐Espinosa

Correa‐Reyes

et al. 2020

Water & Environment J

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Hydroponics is a method of crop production that has been successfully used for the growth of vegetables and flowers. It uses a nutrient solution and generally controlled environmental conditions which makes it more energy intensive, yet more productive than conventional agriculture. Hydroponic systems can be used as a treatment process for partially treated wastewater or reclaimed water (RW) before its release to the environment, as plants have the ability to uptake nutrients, toxic metals and emerging contaminants. The present review has the aim to look into the advantages of hydroponics and evaluate the success of using RW as a nutrient solution. It was found that many examples exist of successful experiments; however, full‐scale examples are still limited. With the recent interest in vertical farming and the production of legal cannabis, interest in hydroponics has increased and the use of RW as a nutrient solution may finally be economically viable.

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Section: Hydroponic Systems With Wastewatermentioning

confidence: 99%

Hydroponics with wastewater: a review of trends and opportunities

Cifuentes‐Torres

Mendoza‐Espinosa

Correa‐Reyes

et al. 2020

Water & Environment J

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“…Besides, hydroponic systems have been reported to enhance the removal efficiency of pathogens, in wastewater treatment system (Ndulini et al, 2018). These researchers showed a removal efficiency of 92.77% for faecal coliforms removal, using of Bidenspilosa L. and Amaranthushybridus L. In their study, Ottoson et al (2005) have also been shown that hydroponics can be an alternative to conventional wastewater treatment through the virus and (oo)cyst removal. On the other hand, hydroponic systems can help in biomass production for value-added crops thereby improving food security and income generation among poor communities (Eregno et al, 2017;Jesse et al, 2019).…”

Section: Introductionmentioning

confidence: 97%

Investigating the capacity of hydroponic system using lettuce (Lactuca sativa L.) in the removal of pollutants from greywater while ensuring food security

Sangaré¹,

Coulibaly²,

Andrianisa³

et al. 2021

IJEAB

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The study aims to investigate the removal of nutrients, organic pollutants and fecal bacteria from greywater while evaluating the growth and yields of lettuce using hydroponic system. Lettuces grow in hydroponic systems irrigated with untreated greywater, and fresh well water, separately. Nutrients, organic pollutants, and fecal bacteria of dishwashing greywater were monitored. Agronomical and microbiological parameters of lettuce were investigated. The results showed that removal efficiencies forammonia (NH4 + ), nitrate (NO3 -), and total phosphorus (TP) were 78 %, 87 % and 56 %, respectively. The organic pollutants removal efficiencies were higher than 50% for Total Suspended Solids (TSS), 5days Biochemical Oxygen Demand (BOD5) and Chemical Oxygen Demand (COD). The removal efficiencies are 88.68 % and 81.94 % for E. coli, and fecal coliforms, respectively. The fecal bacteria were not observed in the lettuce leaves. Besides, the lettuces irrigated with greywater produced higher biomass than the ones irrigated with fresh well water. The hydroponic system could be an alternative for greywater treatment and ensuring food security.

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“…Sendo assim, um sistema de tratamento representa um processo importante para a melhoria da qualidade da água residual, além de implementar cultivos mais sustentáveis. Diversos tipos de sistemas de tratamento podem ser utilizados e, dentre eles, o emprego das macrófitas aquáticas em alagados artificiais representa um sistema bastante estudado para aquicultura, apresentando eficiência na redução das concentrações de poluentes inorgânicos, metais pesados, substâncias tóxicas, além de microrganismos patogênicos e/ou indicadores, como os coliformes termotolerantes (por exemplo, Escherichia coli) (ALMEIDA & ALMEIDA, 2006;DINIZ et al, 2005;SANTOS & CAMARGO, 2015;OTTOSON et al, 2005;PINTO et al, 2009).…”

Section: Introductionunclassified

Utilização de macrófitas aquáticas de três diferentes tipos ecológicos para remoção de Escherichia coli de efluentes de criação de pacu

Assunção

Gatti

Almeida

et al. 2017

Eng. Sanit. Ambient.

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efluente. O sistema de tratamento proposto foi eficiente na remoção de E. coli da água, sendo que, após estabilização do sistema, ocorreu remoção média de 95% da contaminação. A etapa contendo E. crassipes apresentou maior remoção média, porém mostrou diminuição da eficiência a partir de 60 dias após implementação do sistema. A remoção média das etapas contendo C. demersum e T. domingensis foi prejudicada devido à presença de E. coli no solo usado como substrato durante as primeiras semanas de experimento. Contudo Typha domingensis).The most probable number of E. coli in the water was quantified for supply site, effluent and at each stage of treatment (sedimentation and use of each type of aquatic macrophyte). We conclude that E. coli contamination in water supply and in fishpond can reach the environment through the effluent. The proposed treatment system was efficient in removing E. coli from the water, and when the system was stabilized the average removal efficiency of E. coli was 95%.The tank containing E. crassipes showed the highest removal average, even though it exhibited an efficiency reduction after 60 days of experiment.The average removal of the tanks containing C. demersum and T. domingensis was hampered due to the presence of E. coli in soil used as substrate. However, after the decrease of substrate contamination effect, these two plants were essential for the maintenance of water quality of the treated effluent, indicating the benefits of aquatic macrophytes diversity in treatment systems. The effluent quality was maintained even when some system steps presented a decrease of removal efficiency.

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Removal of micro-organisms in a small-scale hydroponics wastewater treatment system

Cited by 16 publications

References 26 publications

Hydroponics with wastewater: a review of trends and opportunities

Hydroponics with wastewater: a review of trends and opportunities

Investigating the capacity of hydroponic system using lettuce (Lactuca sativa L.) in the removal of pollutants from greywater while ensuring food security

Utilização de macrófitas aquáticas de três diferentes tipos ecológicos para remoção de Escherichia coli de efluentes de criação de pacu

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