Mirella Klausen da Silveira, Ailton Borges Rodrigues, Beatriz Silvestre Puchalski, André Fazolo, Tiago Fazolo, Maurício Luiz Sens, Bruno Segalla Pizzolatti
{"title":"聚氨酯海绵预处理对生物稳定型生物砂滤池的影响。","authors":"Mirella Klausen da Silveira, Ailton Borges Rodrigues, Beatriz Silvestre Puchalski, André Fazolo, Tiago Fazolo, Maurício Luiz Sens, Bruno Segalla Pizzolatti","doi":"10.1080/09593330.2025.2550673","DOIUrl":null,"url":null,"abstract":"<p><p>Household slow sand filters are considered simple, efficient, and low-cost solutions for accessing drinking water in isolated communities. To ensure safe handling, it is essential for their operation to be simple and reliable, while requiring the lowest possible frequency of maintenance, as this will be carried out by the residents themselves. This is the first study to evaluate the performance of intermittent biosand filters (BSFs) using a polyurethane sponge positioned on top of the filter media, acting as a physical pre-treatment barrier. Two filters were compared: one with the sponge (BSF-S) and one without (BSF), analysing the effects on water quality, cleaning frequency, and material replacement. In the BSF-S, two sponges were used sequentially: BSF-S1 operated for 344 days and, after its replacement, BSF-S2 operated for an additional 189 days, while the BSF operated continuously for 533 days. No significant differences were observed among the different filter configurations in terms of turbidity, dissolved oxygen, and apparent colour. However, the study water differed significantly from all filtered samples (<i>p</i> < 0.05), confirming filtration effectiveness. In contrast, regarding cleaning frequency, BSF had a total of 11 filter runs, while BSF-S recorded 5 filter runs (3 with BSF-S1 and 2 with BSF-S2), demonstrating that the presence of the sponge fulfilled its role in physical pre-treatment. Incorporating the sponge at the top of the filter media improved operational performance by reducing maintenance needs without compromising water quality, supporting its use in remote households.</p>","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"1-16"},"PeriodicalIF":2.0000,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"The influence of pre-treatment of polyurethane sponge installed in the biologically stabilized biosand filter.\",\"authors\":\"Mirella Klausen da Silveira, Ailton Borges Rodrigues, Beatriz Silvestre Puchalski, André Fazolo, Tiago Fazolo, Maurício Luiz Sens, Bruno Segalla Pizzolatti\",\"doi\":\"10.1080/09593330.2025.2550673\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Household slow sand filters are considered simple, efficient, and low-cost solutions for accessing drinking water in isolated communities. To ensure safe handling, it is essential for their operation to be simple and reliable, while requiring the lowest possible frequency of maintenance, as this will be carried out by the residents themselves. This is the first study to evaluate the performance of intermittent biosand filters (BSFs) using a polyurethane sponge positioned on top of the filter media, acting as a physical pre-treatment barrier. Two filters were compared: one with the sponge (BSF-S) and one without (BSF), analysing the effects on water quality, cleaning frequency, and material replacement. In the BSF-S, two sponges were used sequentially: BSF-S1 operated for 344 days and, after its replacement, BSF-S2 operated for an additional 189 days, while the BSF operated continuously for 533 days. No significant differences were observed among the different filter configurations in terms of turbidity, dissolved oxygen, and apparent colour. However, the study water differed significantly from all filtered samples (<i>p</i> < 0.05), confirming filtration effectiveness. In contrast, regarding cleaning frequency, BSF had a total of 11 filter runs, while BSF-S recorded 5 filter runs (3 with BSF-S1 and 2 with BSF-S2), demonstrating that the presence of the sponge fulfilled its role in physical pre-treatment. Incorporating the sponge at the top of the filter media improved operational performance by reducing maintenance needs without compromising water quality, supporting its use in remote households.</p>\",\"PeriodicalId\":12009,\"journal\":{\"name\":\"Environmental Technology\",\"volume\":\" \",\"pages\":\"1-16\"},\"PeriodicalIF\":2.0000,\"publicationDate\":\"2025-08-29\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Environmental Technology\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://doi.org/10.1080/09593330.2025.2550673\",\"RegionNum\":4,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENVIRONMENTAL SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Environmental Technology","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1080/09593330.2025.2550673","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
The influence of pre-treatment of polyurethane sponge installed in the biologically stabilized biosand filter.
Household slow sand filters are considered simple, efficient, and low-cost solutions for accessing drinking water in isolated communities. To ensure safe handling, it is essential for their operation to be simple and reliable, while requiring the lowest possible frequency of maintenance, as this will be carried out by the residents themselves. This is the first study to evaluate the performance of intermittent biosand filters (BSFs) using a polyurethane sponge positioned on top of the filter media, acting as a physical pre-treatment barrier. Two filters were compared: one with the sponge (BSF-S) and one without (BSF), analysing the effects on water quality, cleaning frequency, and material replacement. In the BSF-S, two sponges were used sequentially: BSF-S1 operated for 344 days and, after its replacement, BSF-S2 operated for an additional 189 days, while the BSF operated continuously for 533 days. No significant differences were observed among the different filter configurations in terms of turbidity, dissolved oxygen, and apparent colour. However, the study water differed significantly from all filtered samples (p < 0.05), confirming filtration effectiveness. In contrast, regarding cleaning frequency, BSF had a total of 11 filter runs, while BSF-S recorded 5 filter runs (3 with BSF-S1 and 2 with BSF-S2), demonstrating that the presence of the sponge fulfilled its role in physical pre-treatment. Incorporating the sponge at the top of the filter media improved operational performance by reducing maintenance needs without compromising water quality, supporting its use in remote households.
期刊介绍:
Environmental Technology is a leading journal for the rapid publication of science and technology papers on a wide range of topics in applied environmental studies, from environmental engineering to environmental biotechnology, the circular economy, municipal and industrial wastewater management, drinking-water treatment, air- and water-pollution control, solid-waste management, industrial hygiene and associated technologies.
Environmental Technology is intended to provide rapid publication of new developments in environmental technology. The journal has an international readership with a broad scientific base. Contributions will be accepted from scientists and engineers in industry, government and universities. Accepted manuscripts are generally published within four months.
Please note that Environmental Technology does not publish any review papers unless for a specified special issue which is decided by the Editor. Please do submit your review papers to our sister journal Environmental Technology Reviews at http://www.tandfonline.com/toc/tetr20/current