scholarly journals Corrigendum: Journal of Water, Sanitation and Hygiene for Development 9 (3), 571–580: Efficacy of integrated ultraviolet ultrasonic technologies in the removal of erythromycin- and quinolone-resistant Escherichia coli from domestic wastewater through a laboratory-based experiment, Owassa Dza Rebecca Annisha, Zifu Li, Xiaoqin Zhou, Ngomah Madgil Don Stenay Junior and Oscar Omondi Donde, https://doi.org/10.2166/washdev.2019.021

2021 ◽  
Author(s):  
Owassa Dza Rebecca Annisha ◽  
Zifu Li ◽  
Xiaoqin Zhou ◽  
Ngomah Madgil Don Stenay ◽  
Oscar Omondi Donde
Keyword(s):  
Escherichia Coli ◽  
Domestic Wastewater ◽  
Sanitation And Hygiene

Microbial risk in wastewater irrigated lettuce: comparing Escherichia coli contamination from an experimental site with a laboratory approach

2016 ◽  
Vol 74 (3) ◽  
pp. 749-755 ◽  
Author(s):  
P. Makkaew ◽  
M. Miller ◽  
H. J. Fallowfield ◽  
N. J. Cromar
Keyword(s):  
Escherichia Coli ◽  
Domestic Wastewater ◽  
Quantitative Microbial Risk Assessment ◽  
Experimental Site ◽  
Microbial Risk Assessment ◽  
Plastic Sheet ◽  
Microbial Risk ◽  
E Coli ◽  
Surrogate Method

This study assessed the contamination of Escherichia coli, in lettuce grown with treated domestic wastewater in four different irrigation configurations: open spray, spray under plastic sheet cover, open drip and drip under plastic sheet cover. Samples of lettuce from each irrigation configuration and irrigating wastewater were collected during the growing season. No E. coli was detected in lettuce from drip irrigated beds. All lettuce samples from spray beds were positive for E. coli, however, no statistical difference (p > 0.05) was detected between lettuces grown in open spray or covered spray beds. The results from the field experiment were also compared to a laboratory experiment which used submersion of lettuce in wastewater of known E. coli concentration as a surrogate method to assess contamination following irrigation. The microbial quality of spray bed lettuces was not significantly different from submersed lettuce when irrigated with wastewater containing 1,299.7 E. coli MPN/100 mL (p > 0.05). This study is significant since it is the first to validate that the microbial contamination of lettuce irrigated with wastewater in the field is comparable with a laboratory technique frequently applied in the quantitative microbial risk assessment of the consumption of wastewater irrigated salad crops.

scholarly journals Occurrence of antimicrobial-resistant Escherichia coli in sewage treatment plants of South India

2020 ◽  
Vol 10 (1) ◽  
pp. 48-55 ◽  
Author(s):  
Yerabham Praveenkumarreddy ◽  
Masato Akiba ◽  
Keerthi Siri Guruge ◽  
Keshava Balakrishna ◽  
Kalwaje Eshwara Vandana ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Antimicrobial Resistance ◽  
South India ◽  
Sewage Treatment ◽  
Domestic Wastewater ◽  
Global Network ◽  
Resistance Pattern ◽  
Sewage Treatment Plants ◽  
E Coli ◽  
Significant Difference

Abstract Antibiotics received by sewage treatment plants may be the causative factor in spreading antibiotic resistance bacteria in the aquatic environment. The current study investigates the distribution of antimicrobial-resistant Escherichia coli (E. coli) in four sewage treatment plants (STPs) in South India receiving hospital and domestic wastewater in different proportions. A total of 221 E. coli isolates were checked for antimicrobial resistance against 16 antimicrobials. Among the antimicrobials tested, ampicillin (AMP) and cefazolin (CFZ) showed resistance between 20% and 90%, nalidixic acid (NAL) and ciprofloxacin (CIP) showed resistance between 15% and 75% and chloramphenicol (CHL) showed resistance between 2% and 20%. Based on the observations, there is no significant difference between the wastewater inlet and outlet, suggesting that treatment process was not effective in reducing the resistance. In conclusion, the trends of antimicrobial resistance pattern show that the levels of resistance were slightly higher in hospital wastewater than domestic wastewater. This article has been made Open Access thanks to the generous support of a global network of libraries as part of the Knowledge Unlatched Select initiative.

scholarly journals Lawn irrigation with domestic wastewater by subsurface drip or sprinkling

2020 ◽  
Vol 26 (3) ◽  
pp. 486-498
Author(s):  
Rafael Barcelos Mendonça ◽  
Roberto Lyra Villas Bôas ◽  
Leandro José Grava de Godoy ◽  
Renan Lima de Sousa
Keyword(s):  
Escherichia Coli ◽  
Sewage Treatment ◽  
Domestic Wastewater ◽  
Total Coliforms ◽  
Basic Sanitation ◽  
Daily Evapotranspiration ◽  
Irrigation Depth ◽  
Lawn Irrigation ◽  
Subsurface Drip

Abstract To maintain the quality of a lawn and allow it to perform its functions (esthetics, enhancement of property, reduction of air temperature, etc.) efficient use of irrigation and adequate fertilization are necessary. The use of wastewater from sewage treatment, which has a nutrient load, in irrigation, can be an alternative especially if applied via subsurface, to reduce contamination risks. This study was conducted to examine the development and quality of an ornamental lawn of Zoysia japonica Steud (zoysiagrass) irrigated with wastewater depths, by two methods. The experiment was carried out in Botucatu-SP, Brazil, during winter and spring (June to December 2016). The treatments consisted of two irrigation methods (sprinkling and subsurface drip) and four domestic-wastewater irrigation depths (50%, 100%, 150% and 200% of the average daily evapotranspiration) plus control, where treated water was supplied by the Basic Sanitation Company of São Paulo State (Sabesp) of Botucatu, SP, Brazil, replacing 100% of average daily evapotranspiration. The following characteristics were studied: clipping dry matter weight, relative chlorophyll content, lawn height, total coliforms and Escherichia coli in the plant tissue and nutrient concentration in the leaves. Subsurface drip irrigation with wastewater, using an irrigation depth of 100% of the average evapotranspiration, allowed an adequate development of the zoysiagrass lawn by maintaining its quality, without contamination by total coliforms or Escherichia coli.

Sustainable Sanitation as a Part of an IWRM in the Karst Area of Gunung Kidul: Community Acceptance and Opinion

2010 ◽  
Vol 5 (4) ◽  
Author(s):  
S. Nayono ◽  
M. Singer ◽  
H. Lehn ◽  
J. Kopfmüller
Keyword(s):  
Low Income ◽  
Low Cost ◽  
Domestic Wastewater ◽  
Karst Area ◽  
Septic Tanks ◽  
Community Acceptance ◽  
Hygiene Practices ◽  
The People ◽  
Sanitation And Hygiene ◽  
Composting Toilets

To overcome the problem of water scarcity in a rural karst area located in Gunung Sewu, Yogyakarta, Indonesia, water from an underground cave (Bribin Cave) is pumped and distributed to the people. Since karst aquifers are often considered as highly vulnerable to contamination from human activities, potential problems caused by current sanitation and hygiene practices in the recharge region must be anticipated. About 90% of the people in the recharge area use pour flush syphon toilets with poorly designed septic tanks and the rest have simple pit latrines. However, the existing septic tanks are very poorly designed and are actually only improved infiltration pits. One possible option to reduce the risk of aquifer contamination is to promote sustainable sanitation, which combines hygienic aspects with recycling of nutrients from human feces and urine. Sustainable sanitation comprises different technologies including low cost technology, which can be afforded by the community and provide economic benefit to the low income inhabitants in Gunung Sewu. The technology proposed is urine diverting and composting toilets. This paper presents the existing condition of rural domestic wastewater treatment and the opinion/ acceptance of the community in karst area of Gunung Sewu towards urine diverting and composting toilets. The results of the survey shows that although the acceptance of using the composting toilet is not high (25% to 43%), the interest of the community in using the end product is relatively high. While the acceptance of composting fertilizer from feces (humanure) ranges from 37% to 57%, urine fertilizer attracts 42%-71% respondents' interest.

Long-term survival of Escherichia coli in lightweight aggregate filter media of constructed wastewater treatment wetlands

2011 ◽  
Vol 63 (3) ◽  
pp. 558-564 ◽  
Author(s):  
A. M. Paruch
Keyword(s):  
Escherichia Coli ◽  
Domestic Wastewater ◽  
Lightweight Aggregate ◽  
Storage Condition ◽  
Filter Media ◽  
Term Survival ◽  
Growth And Survival ◽  
E Coli ◽  
Temperature Regimes ◽  
The Media

A laboratory scale experiment on the survival of Escherichia coli in samples of filter media from a horizontal subsurface flow constructed wetland treating domestic wastewater was performed. A concentration of E. coli was examined in samples collected from a wetland filter filled with lightweight aggregates (LWA). All samples testing positive for E. coli contamination were used to examine the effect of storage time on the survival of E. coli at three temperature regimes: cold (4°C), mild (10°C) and warm (22°C). It was found that the mild storage condition favoured the growth and survival of E. coli in the tested LWA media. The growth in samples of the uppermost layer of the media lasted for 5.5 months, during which E. coli reached a maximum concentration of 6.4 × 103 MPN/100 g dry matter in the media. It was also observed that E. coli had a greater capacity to survive for extended periods of time in samples collected from the upper layer of the LWA filter compared to samples taken from the deeper layers. The survival of E. coli in the shallowest samples of the wetland filter was remarkably long and unexpected, lasting for a period of over 14 months.

scholarly journals DESENVOLVIMENTO DA CULTURA E PRESENÇA DE E. COLI NA SALSA IRRIGADA COM ÁGUA RESIDUÁRIA TRATADA POR RADIAÇÃO SOLAR

Irriga ◽  
2019 ◽  
Vol 24 (2) ◽  
pp. 336-351
Author(s):  
Mariana A. L. Sales ◽  
Rodrigo Máximo Sánchez-Román
Keyword(s):  
Escherichia Coli ◽  
Water Reuse ◽  
Domestic Wastewater ◽  
Positive Influence ◽  
Sao Paulo ◽  
Petroselinum Crispum ◽  
São Paulo ◽  
Domestic Waste ◽  
E Coli ◽  
Irrigation Depth

DESENVOLVIMENTO DA CULTURA E PRESENÇA DE E. COLI NA SALSA IRRIGADA COM ÁGUA RESIDUÁRIA TRATADA POR RADIAÇÃO SOLAR     MARIANA ALEXANDRE DE LIMA SALES1 E RODRIGO MÁXIMO SÁNCHEZ ROMÁN2   1 Doutora em Agronomia: Irrigação e Drenagem. Rua Heleni de Souza Costa, 41 – Jardim Ypê, 18.608-710, Botucatu-SP, Brasil. [email protected] 2 Departamento de Engenharia Rural, Faculdade de Ciências Agronômicas, Universidade Estadual Paulista (UNESP) Campus de Botucatu. Fazenda Experimental Lageado, Avenida Universitária, nº 3780, Altos do Paraíso, CEP: 18610-034, Botucatu – SP. Brasil. [email protected]     1 RESUMO   O objetivo deste trabalho foi avaliar a influência da água residuária doméstica tratada por radiação solar (ARD-TRS) no desenvolvimento da salsa (graúda portuguesa), além de verificar e quantificar a presença de Escherichia coli na cultura. O experimento foi realizado na FCA/UNESP no município de Botucatu - São Paulo, o qual consistiu na aplicação de diferentes porcentagens (0, 25, 50, 75 e 100%) de ARD-TRS na lâmina total de irrigação. Os resultados obtidos foram satisfatórios, visto que no geral houve um aumento nos valores de altura da planta, número de talos, diâmetro do maior talo, diâmetro da touceira e massa da matéria fresca e seca, observando-se diferenças significativas em função da porcentagem de ARD-TRS na lâmina total de irrigação. Assim conclui-se que, a utilização de diferentes porcentagens de ARD-TRS na lâmina total de irrigação influenciou positivamente no desenvolvimento da cultura estudada, apresentando uma população de E. coli na água de irrigação < 100 NMP 100 mL-1 e nas culturas ≤ 1.000 NMP 100 mL-1.   Palavras-chave: reuso da água, SODIS, Petroselinum Crispum, coliformes, produtividade.   SALES, M. A. L.; SÁNCHEZ-ROMÁN, R. M. DEVELOPMENT AND PRESENCE OF E. COLI IN PARSLEY IRRIGATED WITH DOMESTIC WASTE WATER TREATED WITH SOLAR RADIATION     2 ABSTRACT   The objective of this study was to evaluate the influence of solar-treated domestic wastewater (ARD-TRS) on the development of parsley (Portuguese coarse), and to verify and quantify the presence of Escherichia coli in the crop. The experiment, carried out at FCA / UNESP, in Botucatu - São Paulo, consisted of the application of different percentages (0, 25, 50, 75 and 100%) of ARD-TRS in the total irrigation depth. The results obtained were satisfactory, since in general there was an increase in  values ​​of plant height, number of stalks, diameter of the largest stalk, clump diameter and mass of fresh and dry matter, and significant differences were observed as function of the percent of ARD-TRS in the total irrigation depth. Thus, it was concluded that the use of different percentages of ARD-TRS in the total irrigation depth had a positive influence on the development of the studied culture, presenting a population of E. coli in irrigation water <100 NMP 100 mL-1 and in cultures ≤ 1,000 NMP 100 mL -1.   Keywords: water reuse, SODIS, Petroselinum crispum, coliforms, productivity.

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