Journal of water and health最新文献_第7页

Effect of handwashing on the reduction of Escherichia coli on children's hands in urban slum Indonesia 洗手对印度尼西亚城市贫民窟儿童手部大肠杆菌减少的影响

4区环境科学与生态学

Journal of water and health Pub Date : 2023-10-19 DOI: 10.2166/wh.2023.121

Mahmud Aditya Rifqi, Umi Hamidah, Neni Sintawardani, Hidenori Harada, Sikopo Nyambe, Akira Sai, Taro Yamauchi

{"title":"Effect of handwashing on the reduction of Escherichia coli on children's hands in urban slum Indonesia","authors":"Mahmud Aditya Rifqi, Umi Hamidah, Neni Sintawardani, Hidenori Harada, Sikopo Nyambe, Akira Sai, Taro Yamauchi","doi":"10.2166/wh.2023.121","DOIUrl":"https://doi.org/10.2166/wh.2023.121","url":null,"abstract":"Abstract Poor hand hygiene practice has been linked to an increase in the number of infections among children in urban slums. Hands are considered an intersection for bacterial transmission, but it is unclear whether the handwashing technique affects bacteria elimination. This study investigated the effect of handwashing on the concentration of Escherichia coli (E. coli) and factors related to its reduction among children in an urban slum in Bandung, Indonesia. We observed handwashing and conducted repeated hand swabs before and after handwashing among 137 participants. The mean E. coli concentration on the hands decreased after handwashing, with a higher reduction in E. coli count among students who used soap and had soap contact for more than 10 s during handwashing. Cleaning in-between fingers, using soap, soap contact for more than 10 s, and drying hands with a single-use towel were effective factors for reducing E. coli concentration after handwashing (p &lt; 0.05). More than half of the swab samples (59%) tested positive for E. coli after handwashing, indicating that the children's handwashing technique was not effective in completely removing E. coli from the hands. Moreover, sustained and consistent handwashing practice as a daily behavior in children would maximize the effect.","PeriodicalId":17436,"journal":{"name":"Journal of water and health","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135779300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis and risk assessment of pharmaceutical residues in fish from three water bodies in Ghana 加纳三个水体鱼类药物残留分析及风险评估

4区环境科学与生态学

Journal of water and health Pub Date : 2023-10-17 DOI: 10.2166/wh.2023.208

Albert Ebo Duncan, Christian Adokoh, Martha Osei-Marfo, Samuel Barnie, Aboagye George Sakyi, Josephe Adjei

{"title":"Analysis and risk assessment of pharmaceutical residues in fish from three water bodies in Ghana","authors":"Albert Ebo Duncan, Christian Adokoh, Martha Osei-Marfo, Samuel Barnie, Aboagye George Sakyi, Josephe Adjei","doi":"10.2166/wh.2023.208","DOIUrl":"https://doi.org/10.2166/wh.2023.208","url":null,"abstract":"Abstract Illegal mining has overshadowed pharmaceutical pollution even though exposure to pharmaceutical waste is high. Consumption of fish potentially polluted with pharmaceuticals from the rivers continues with little concern or potential threat it poses. In the present study, the residues of one antibiotic (Chloramphenicol), five hormones (progesterone, 17-beta Estradiol, Estrone, 17a-Ethynylestradiol, and one), three environmental contaminants (4-para-nonylphenol, 4-tert-octylphenol, and Bisphenol A), one barbiturate (Primidone) and one analgesic (Diclofenac sodium salt), were investigated from fish samples from the rivers Pra, Narkwa, and the Volta. The results show a high concentration of drugs in River Pra in comparison to those in Rivers Narkwa and Volta. The hazard quotients (HQs) for the environmental contaminants were all above 1, except Bisphenol A. Furthermore, the HQs from this study suggest that consumers of fish from any of the three rivers stand a hazard risk of Chloramphenicol (19), 17a-Ethynylestradiol (4), Estrone (1.366), Diclofenac sodium salt (3.29), Progesterone (4.598), 4-tert-octylphenol (87.2), and 4-para-nonylphenol (7.252), but negligible risk against E2 (0.687), Primidone (0.014), Testosterone (0.16), and Bisphenol A (0.642). Of the fish species studied, the highest concentration of all pharmaceuticals put together is found in Clarias gariepinus, Labeo senegalensis, and Chrysichthys nigrodigitatus in that order.","PeriodicalId":17436,"journal":{"name":"Journal of water and health","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136032621","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hospital waste incinerator ash: characteristics, treatment techniques, and applications (A review) 医院垃圾焚烧炉灰:特性、处理技术及应用(综述)

4区环境科学与生态学

Journal of water and health Pub Date : 2023-10-11 DOI: 10.2166/wh.2023.299

Nuseibah Abd Alhameed El-Amaireh, Habis Al-Zoubi, Omar Ali Al-Khashman

{"title":"Hospital waste incinerator ash: characteristics, treatment techniques, and applications (A review)","authors":"Nuseibah Abd Alhameed El-Amaireh, Habis Al-Zoubi, Omar Ali Al-Khashman","doi":"10.2166/wh.2023.299","DOIUrl":"https://doi.org/10.2166/wh.2023.299","url":null,"abstract":"Abstract The amount of medical waste generated has increased enormously since the COVID-19 outbreak. An incineration process is the main method that is usually used to treat this waste, causing an increase in both medical waste bottom ash (MWBA) and medical waste fly ash (MWFA). In this work, the physical and chemical characteristics of MWFA and MWBA were reviewed. This ash contains high levels of polychlorinated dibenzo-p-dioxin (PCDD), dibenzofurans (PCDFs), and heavy metals. Furthermore, medical waste ash appears to have high leachability in the toxicity characteristics leaching procedure (TCLP) test and the European standard test (EN 12457). Owing to its toxicity, medical ash can be treated using various methods prior to disposal based on the covered review. These techniques include chemical, supercritical fluid, cement-based, melting, microwave, and mechanochemical techniques. The shortcomings of some of these treatment methods have been identified, such as the emission of high levels of chlorine from the melting technique, limited applications of the flotation method on the industrial scale, long-term stability of leachate treated by cement-based methods that have not been confirmed yet, and high energy consumption in the supercritical technique. This review also covers possible applications of medical waste ash in cement production, agriculture, and road construction.","PeriodicalId":17436,"journal":{"name":"Journal of water and health","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136211365","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dual system of water safety plan auditing in Hungary: benefits and lessons learnt 匈牙利水安全计划审计的双重制度:益处和经验教训

4区环境科学与生态学

Journal of water and health Pub Date : 2023-10-06 DOI: 10.2166/wh.2023.130

Zsuzsanna Bufa-Dőrr, Ágnes Sebestyén, Bálint Izsák, Oliver Schmoll, Tamás Pándics, Márta Vargha

{"title":"Dual system of water safety plan auditing in Hungary: benefits and lessons learnt","authors":"Zsuzsanna Bufa-Dőrr, Ágnes Sebestyén, Bálint Izsák, Oliver Schmoll, Tamás Pándics, Márta Vargha","doi":"10.2166/wh.2023.130","DOIUrl":"https://doi.org/10.2166/wh.2023.130","url":null,"abstract":"Abstract A risk-based approach is recognised worldwide as the most reliable means for the provision of safe drinking water. Efficient implementation of the water safety plan (WSP) approach, recommended by the World Health Organization (WHO), is facilitated by an auditing framework. In Hungary, development of WSPs is a legal obligation for water suppliers. WSPs are subject to a two-stage regulatory audit, a consultative central technical audit and a formal local audit. In 2019, a survey was conducted in cooperation with WHO to evaluate audit experiences of over 1,200 WSPs. Recommendations from the central audit significantly improved coherence and compliance of WSPs, confirming the efficiency of the dual approach. The use of a WSP template provided by the national authority further increased consistency and reduced time and work demand of the audit. Both water suppliers and public health authorities indicated a need for further capacity building on WSP development and auditing. The main challenge for water suppliers is the identification and risk assessment of hazards associated with the water source and distribution within premises. The recast European Union drinking water regulation is expected to accelerate the uptake of WSP and strengthen linkages to water catchment management and water safety in buildings.","PeriodicalId":17436,"journal":{"name":"Journal of water and health","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135347280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Isolation and genotyping of Acanthamoeba species and Vahlkampfiidae in the harsh environmental conditions in the centre of Iran. 伊朗中部恶劣环境条件下棘阿米巴属和华蟾科的分离和基因分型。

IF 2.3 4区环境科学与生态学

Journal of water and health Pub Date : 2023-10-01 DOI: 10.2166/wh.2023.203

Azam Pourabbasi Ardekan, Maryam Niyyati, Reza Saberi, Leyli Zanjirani Farahani, Marziye Fatemi

{"title":"Isolation and genotyping of Acanthamoeba species and Vahlkampfiidae in the harsh environmental conditions in the centre of Iran.","authors":"Azam Pourabbasi Ardekan, Maryam Niyyati, Reza Saberi, Leyli Zanjirani Farahani, Marziye Fatemi","doi":"10.2166/wh.2023.203","DOIUrl":"https://doi.org/10.2166/wh.2023.203","url":null,"abstract":"Different species of free-living amoeba (FLA) have been abundantly isolated in harsh environmental conditions such as hot springs and brackish water. The present study aimed to isolate, genotype, and evaluate the pathogenicity of FLAs in Qom Roud, a large river, in the centre of Iran. About 500 mL of water samples (n = 30) were collected from each sampling site and were investigated for the presence of FLAs using morphological and molecular characters. Genotype identification was performed using DNA sequencing and a phylogenetic tree was constructed with the MEGA X software. The pathogenic potential of all positive isolates was evaluated using the tolerance ability test. Morphological and molecular analysis indicated that 14 (46.66%) and two (6.66%) water samples were positive for Acanthamoeba species and Vahlkampfiidae, respectively. According to sequence analysis, Acanthamoeba isolates related to the T4 genotype and Vahlkampfiidae sequences were similar to Naegleria philippinensis. In the next step, thermo- and osmotolerance tests indicated four Acanthamoeba strains are extremely pathogenic. Our data showed the presence of potentially pathogenic Acanthamoeba T4 genotype and N. philippinensis in the super harsh Qom Roud. Contamination of water with virulent T4 genotype of Acanthamoeba may pose risk factors for contact lens users, children, and immunocompromised people.","PeriodicalId":17436,"journal":{"name":"Journal of water and health","volume":"21 10","pages":"1572-1579"},"PeriodicalIF":2.3,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/wh_2023_203/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71412711","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

lmplementation of a national regulatory framework for drinking water safety plans in Uruguay. 乌拉圭饮用水安全计划国家监管框架的实施。

IF 2.3 4区环境科学与生态学

Journal of water and health Pub Date : 2023-10-01 DOI: 10.2166/wh.2023.101

Jose M P Vieira, Sandra Rodríguez, Paula Suarez, Ricardo Kramer

{"title":"lmplementation of a national regulatory framework for drinking water safety plans in Uruguay.","authors":"Jose M P Vieira, Sandra Rodríguez, Paula Suarez, Ricardo Kramer","doi":"10.2166/wh.2023.101","DOIUrl":"https://doi.org/10.2166/wh.2023.101","url":null,"abstract":"The establishment of national strategic frameworks for systematic scaling-up of water safety plans (WSPs) implementation needs to overcome major constraints: lack of legislation and policies, and the need for appropriate monitoring tools. In 2018, the Uruguayan regulator for energy and water services promulgated a regulation intended to ensure an ambitious and pragmatic strategy that supports and promotes WSP implementation and auditing at a national scale. The goal is to have all drinking water supply systems with their WSP implemented by 2030. For this, a demanding schedule was recommended considering the size of the drinking water supplies: (i) large systems serving more than 2,000 inhabitants and (ii) small and very small systems serving fewer than 2,000 inhabitants. A mandatory verification through internal and external audits was also established. This work describes the legal and regulatory framework as well as the challenges and opportunities that open up for the generalization of WSP implementation in Uruguay. Despite the impact of COVID-19 on working conditions for water suppliers, as for the year 2022, WSPs have been successfully implemented in 94 water systems serving more than 2.4 million people. Results of successful implementation and auditing processes are presented and discussed covering methods and outcomes.","PeriodicalId":17436,"journal":{"name":"Journal of water and health","volume":"21 10","pages":"1448-1459"},"PeriodicalIF":2.3,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/wh_2023_101/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71412712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessing water, sanitation and hygiene (WASH) practices and their association with diarrhoea in under-five children in urban Chandernagore: Community-based evidence from a small municipal corporation in Hooghly District of West Bengal, India. 评估Chandernagore城市五岁以下儿童的饮水、环境卫生和个人卫生做法及其与腹泻的关系：来自印度西孟加拉邦胡格利区一家小型市政公司的社区证据。

IF 2.3 4区环境科学与生态学

Journal of water and health Pub Date : 2023-10-01 DOI: 10.2166/wh.2023.262

Sayantani Chatterjee, Debojyoti Majumder, M N Roy

{"title":"Assessing water, sanitation and hygiene (WASH) practices and their association with diarrhoea in under-five children in urban Chandernagore: Community-based evidence from a small municipal corporation in Hooghly District of West Bengal, India.","authors":"Sayantani Chatterjee, Debojyoti Majumder, M N Roy","doi":"10.2166/wh.2023.262","DOIUrl":"https://doi.org/10.2166/wh.2023.262","url":null,"abstract":"The study aims to understand the relationship of childhood diarrhoea (under-five children) with water, sanitation and hygiene factors in the light of other contextual factors in an urban setting in the district of Hooghly in West Bengal, India. This primary study was carried out by SIGMA Foundation, Kolkata from 4 to 24 January 2023 across 404 households having at least one under-five child. The findings suggested that the water score was 'good' in 85.1% of the households whereas the hand hygiene score was 'good' in 14.6% of households. More than 90% of the households had piped water supply. Less than half of them treated water before consumption among which 45.3% used cloths for straining water; 59.2% of the caregivers followed safe disposal of child's faeces; 66.8% of households had no handwashing arrangement, and 30.5% had taps and wash basins for handwashing; 20.3% of the under-five children had suffered from diarrhoea in the last month before the survey and its prevalence was higher in children aged 12-23 months. Multivariate results suggested diarrhoea prevalence was lower in households that were pucca and had good water and hand hygiene scores, lower in children that had received iron fortification and whose caregivers followed safe child's stool disposal.","PeriodicalId":17436,"journal":{"name":"Journal of water and health","volume":"21 10","pages":"1530-1549"},"PeriodicalIF":2.3,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/wh_2023_262/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71412702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Contamination, ecological, and human health risks of heavy metals in water from a Pb-Zn-F mining area, North Eastern Nigeria. 尼日利亚东北部Pb-Zn-F矿区水中重金属的污染、生态和人类健康风险。

IF 2.3 4区环境科学与生态学

Journal of water and health Pub Date : 2023-10-01 DOI: 10.2166/wh.2023.132

Adeniyi JohnPaul Adewumi, Temitope Ayodeji Laniyan

{"title":"Contamination, ecological, and human health risks of heavy metals in water from a Pb-Zn-F mining area, North Eastern Nigeria.","authors":"Adeniyi JohnPaul Adewumi, Temitope Ayodeji Laniyan","doi":"10.2166/wh.2023.132","DOIUrl":"https://doi.org/10.2166/wh.2023.132","url":null,"abstract":"In Nigeria, artisanal mining has become a serious issue. In the Nigerian mining region of Arufu Pb-Zn-F, this study assessed the level of pollution, ecological hazards, and health risks related to the presence of metals in the water. In the dry and rainy seasons, 36 water samples (20 from the ground, 10 from the surface, and six from the mine) were gathered. Samples were examined for the presence of heavy metals such as Cr, Co, Ni, Cu, Zn, As, Cd, and Pb. Other than Cu, Zn, As, Cd, Sb, and Cd (surface water, dry season), which were below the acceptable norm, all water samples had metals over the suggested limits. Heavy metals from nearby mining activities polluted the water, according to contamination evaluations utilizing the contamination factor (CF). Metals in the water may pose very significant ecological dangers, according to ecological risk assessments. The evaluation of human health risks revealed that both adults and children in the region are susceptible to carcinogenic and non-carcinogenic health hazards since the hazard index (HI) values for both indices were above 1 × 10-5 and above 1, respectively. This report emphasizes the need for monitoring mining operations in the nation to safeguard public health.","PeriodicalId":17436,"journal":{"name":"Journal of water and health","volume":"21 10","pages":"1470-1488"},"PeriodicalIF":2.3,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/wh_2023_132/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71412705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Identification of some microbial flora contained in slaughterhouse effluent and likely to be effective in its treatment by biological process. 鉴定屠宰场废水中含有的一些微生物菌群，并可能通过生物工艺对其进行有效处理。

IF 2.3 4区环境科学与生态学

Journal of water and health Pub Date : 2023-10-01 DOI: 10.2166/wh.2023.115

Esther Maurelle Ngouyamnsa Ghenmi, Djonga Weldi Gnowe, Eric Noubissie, Guy Bertrand Noumi, Ali Ahmed

{"title":"Identification of some microbial flora contained in slaughterhouse effluent and likely to be effective in its treatment by biological process.","authors":"Esther Maurelle Ngouyamnsa Ghenmi, Djonga Weldi Gnowe, Eric Noubissie, Guy Bertrand Noumi, Ali Ahmed","doi":"10.2166/wh.2023.115","DOIUrl":"https://doi.org/10.2166/wh.2023.115","url":null,"abstract":"The specific contributions of the different bacterial flora during the biological treatment of slaughterhouse effluents remain unclear. The objective of this study is to identify the different microbial flora which mainly contribute to the efficiency of the biodegradation of the organic, nitrogenous and phosphate loads contained in the slaughterhouse effluent during its biological treatment. To achieve this, the effluent to be treated was sampled from three slaughterhouses in the city of Ngaoundéré (Cameroon). The various effluents underwent a physicochemical and microbiological characterization. The effluent was subjected to biological treatment. The biodegradation process (biological treatment) took place in two reactors, each operating in batch. One of the two reactors was supplied with oxygen (aeration). The effluent being treated underwent a physicochemical and microbiological characterization for 30 days. The results obtained show organic matter and ammonium contents >1,000 mgO2/L in each of the three effluents. Bacillus cereus (69 × 108 CFU/mL), Pseudomonas aeruginosa (201 × 107 colony forming unit (CFU)/mL) and Yeasts (101 × 106 CFU/mL) globally constitute the majority of microbial groups among the seven microorganisms identified in the effluents of the three slaughterhouses. There is no real oxygenation effect of the medium on the growth of the three microbial flora during the treatment.","PeriodicalId":17436,"journal":{"name":"Journal of water and health","volume":"21 10","pages":"1460-1469"},"PeriodicalIF":2.3,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/wh_2023_115/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71412710","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Efficacy of combined disinfection with a nitric oxide donor in controlling biofilm formation on the reverse osmosis water pathway for hemodialysis. 一氧化氮供体联合消毒对血液透析反渗透水途径生物膜形成的控制效果

IF 2.3 4区环境科学与生态学

Journal of water and health Pub Date : 2023-10-01 DOI: 10.2166/wh.2023.220

Yoshihiro Tange, Ayane Murata, Shigenori Yoshitake

{"title":"Efficacy of combined disinfection with a nitric oxide donor in controlling biofilm formation on the reverse osmosis water pathway for hemodialysis.","authors":"Yoshihiro Tange, Ayane Murata, Shigenori Yoshitake","doi":"10.2166/wh.2023.220","DOIUrl":"10.2166/wh.2023.220","url":null,"abstract":"The water treatment system for hemodialysis (HD) is used to treat multiple patients requiring HD simultaneously. This system requires a large amount of purified reverse osmosis (RO) water. However, a major drawback of this method is the formation of biofilms in dialysate pathways. The purpose of this study was to investigate the efficacy of NOC 18, a nitric oxide (NO) donor that can be used at neutral pH, in disinfecting the RO water pathway. Silicone tubes were obtained from the terminal sites of two different HD units. The biofilm coverage and mean biofilm thickness on the tube lumen were evaluated by scanning electron microscopy. The results demonstrated that treatment with NOC 18 alone and in conjunction with sodium hypochlorite reduced biofilm coverage and mean biofilm thickness. Thus, NO donor is a potential disinfectant that enhances bacterial dispersion from biofilms formed on the silicone tube lumen and reduces biofilm coverage and thickness on the RO water pathway at neutral pH. Furthermore, combined disinfection with the NO donor and sodium hypochlorite might enhance biofilmremoval efficacy in clinical practice.","PeriodicalId":17436,"journal":{"name":"Journal of water and health","volume":"1 1","pages":"1591-1599"},"PeriodicalIF":2.3,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/wh_2023_220/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41529862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0