Effects of wastewater disinfectants on the soil: Implications for soil microbial and chemical attributes

Agnelo, Lucas; Leonel, Lays Paulino; Silva, Noely Bochi; Candello, Fernando Pena; Schneider, Jerusa; Tonetti, Adriano Luiz

doi:10.1016/j.scitotenv.2019.136007

Cited by 16 publications

(3 citation statements)

References 40 publications

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“…Being cationic surfactants, QACs can be strongly adsorbed by soil ( DeLeo et al, 2020 ) and induce damage to soil and plant growth. These damages include degradation of soil fertility, reducing seed germination and relative growth rate ( Agnelo et al, 2020 ), damaging plant root microbial populations, thus, inhibiting plant root and shoot growth ( Parveen et al, 2022 ), and reducing plant water uptake when soil contains disinfectants at high concentrations ( Parveen et al, 2022 ). These compounds can enter into animal and human bodies though soil and plant and provoke adverse effects on the mucosal lining of the respiratory system, resulting in inflammation, irritation, swelling, or ulcer ( Dhama et al, 2021 ).…”

Section: Sources Types and Impacts Of Covid-19 Derived Pollutants In ...mentioning

confidence: 99%

Pandemic COVID-19 ends but soil pollution increases: Impacts and a new approach for risk assessment

Zhang

Jiang

et al. 2023

Science of The Total Environment

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Section: Sources Types and Impacts Of Covid-19 Derived Pollutants In ...mentioning

confidence: 99%

Pandemic COVID-19 ends but soil pollution increases: Impacts and a new approach for risk assessment

Zhang

Jiang

et al. 2023

Science of The Total Environment

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“…The main way to utilize biocide-containing FS is their drainage into a sewerage system for further treatment. In addition to an adverse impact on the activated sludge of wastewater treatment facilities, it carries a risk to public health due to the selection of pathogens resistant to the main antimicrobial preparations [20][21][22]. However, there are practically no works underway to study the toxic effect of this type of biocide used for FS preservation or, in particular, to develop methods for their neutralization.…”

Section: Introductionmentioning

confidence: 99%

Antimicrobial Properties of a Biocide Based on Quaternary Ammonium Compounds plus Polyhexamethylene Guanidine and Possible Methods for Its Deactivation

Litti

Serdyukov

Kanunnikov³

et al. 2021

Appl Biochem Microbiol

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Biocidal agents (BAs) are widely used in environmentally safe toilet complexes (ESTC) of passenger railcars to suppress microbial activity in fecal sludge (FS). The subsequent disposal of BA-containing FS at municipal sewage treatment facilities adversely affects their work due to the loss of activated sludge. The antimicrobial properties of BAs based on quaternary ammonium compounds (QAC) and polyhexamethylene guanidine (PHMG), as well as methods for its neutralization, have been studied. It was confirmed that BAs based on QAC and PHMG have an antimicrobial effect on various groups of bacteria, reducing their number by 10-100 or more times. It was found that FS contains two groups of microorganisms with different sensitivities to BA. Methods for the deactivation of BA antimicrobial action in FS were tested with (1) a deactivating agent; (2) incubation with thermophilically digested wastewater sludge as a source of the methanogenic microbial community; and (3) chemical deactivation via acidification or alkalization. The highest efficiency was obtained from thermophilic anaerobic digestion with the pretreatment of FS with a strong acid.

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“…So far, biofilm mitigation was mainly achieved by the periodical application of chemicals acids (e.g., chlorination) (Katz et al ., 2014; Song et al ., 2017). However, the application of chemical fungicides has caused severe negative impacts on soil and crop growth (Li & Li, 2010) and has led to water pollution issues (Carrow et al ., 2008; Agnelo et al ., 2020). Therefore, more effective and greener anti‐clogging methods for RW drip irrigation systems are urgently needed.…”

Section: Introductionmentioning

confidence: 99%

Bacillus amyloliquefaciens application to prevent biofilms in reclaimed water microirrigation systems*

Wen

Xiao

Song

et al. 2020

Irrigation and Drainage

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Reclaimed water (RW) applied in drip irrigation systems could be a solution to cope with the challenges of limited freshwater resources. Biofilm growth in irrigation systems is an unavoidable issue when using RW. To date, strong chemical bactericides mostly dominate the commercial market in controlling biofilms. However, recently scientists have been concerned about their real efficacy and environmental risks. This study assesses a low‐concentration microbial antagonist (i.e., Bacillus amyloliquefaciens inoculums, BAI) intermittently injected into the systems to mitigate biofilm formation in three types of drip emitters using two kinds of treated RW. The results indicated that the application of BAI significantly (p < .05) mitigated the microbial biomass within biofilms when compared with the control groups (no‐BAI). In addition, BAI reduced the contents of extracellular polysaccharides and proteins of biofilms, which decreased the total biomass in BAI treatments by 44.9%–73.8%. Consequently, BAI effectively improved the emitter performances and increased the discharge variation rate by 31.9%–44.3%. These findings might provide a new perspective to control biofouling when applying RW in irrigation systems, with potential implications for sustainable water management in agricultural production.

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Effects of wastewater disinfectants on the soil: Implications for soil microbial and chemical attributes

Cited by 16 publications

References 40 publications

Pandemic COVID-19 ends but soil pollution increases: Impacts and a new approach for risk assessment

Pandemic COVID-19 ends but soil pollution increases: Impacts and a new approach for risk assessment

Antimicrobial Properties of a Biocide Based on Quaternary Ammonium Compounds plus Polyhexamethylene Guanidine and Possible Methods for Its Deactivation

Bacillus amyloliquefaciens application to prevent biofilms in reclaimed water microirrigation systems*

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