Abstract：
:This study explores the use of natural, ecological coagulant-flocculants to reduce suspended particles in water. Three compounds were tested, namely: diatomaceous earth, calcium lactate and lactic acid. For this purpose, experiments in jar tests were carried out and the best compound was submitted to an optimization in order to evaluate the most significant parameters affecting its use as coagulant-flocculant. First results evidenced that lactic acid remove 71% of the suspended particles during the first five minutes, and up to 83% during the first 15 min. To optimize its use, the range of suspended particles concentration, lactic acid dose and salinity gradient was tested by means of an incomplete 33 factorial design. This technique allows reducing the number of experiments to be carried out through a response surface methodology, which enables to infer the values of the dependent variables in not studied situations, by means of predictive equations. As a result of the experiments carried out, optimal conditions to remove suspended particles were set at a lactic acid concentration of 1.75 g·L-1. As lactic acid may be obtained biotechnologically from organic wastes, this use supposes a promising area by keeping products and materials in use and contributing to a circular economy.
journal_name
Int J Environ Res Public Healthauthors
Devesa-Rey R,González-Aller JD,Urréjola Sdoi
10.3390/ijerph17051777subject
Has Abstractpub_date
2020-03-09 00:00:00issue
5eissn
1661-7827issn
1660-4601pii
ijerph17051777journal_volume
17pub_type
杂志文章abstract：:HPV (human papillomavirus) vaccinations have been introduced into the population of many countries through vaccination programs, although their acceptance varies from country to country, largely dependent on the state of knowledge about diseases caused by genital HPV types as well as cultural, social, and religious fa...
journal_title：International journal of environmental research and public health
pub_type： 杂志文章
doi：10.3390/ijerph18020551
更新日期：2021-01-11 00:00:00
abstract：:The bone is one of the relevant target organs of heavy metals, and heavy metal toxicity is associated with several degenerative processes, such osteoporosis and bone mineral alterations, that could lead to fractures. We aimed to study a presumed relationship between bone density, evaluated by quantitative bone ultraso...
journal_title：International journal of environmental research and public health
pub_type： 杂志文章
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更新日期：2017-11-23 00:00:00
abstract：:This paper studies how consumers' psychological factors influence their intentional purchasing behavior towards eco-labeled products and investigates why consumers choose eco-labeled products. Based on the Theory of Planned Behavior, we develop an extended model including six constructs. Among these constructs, consum...
journal_title：International journal of environmental research and public health
pub_type： 杂志文章
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更新日期：2019-12-30 00:00:00
abstract：:Metabolic associated fatty liver disease (MAFLD) is recognized as the liver disease component of metabolic syndrome, which is mainly related to insulin resistance and genetic susceptibility. It is the most prevalent chronic liver disease worldwide. With rapid lifestyle transitions, its prevalence worldwide is increasi...
journal_title：International journal of environmental research and public health
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更新日期：2020-03-11 00:00:00
abstract：:Hepatocellular carcinoma (HCC) is a common and fatal cancer. People with HCC report higher odds of comorbidity compared with people without HCC. To explore the association between HCC and medical comorbidity, we used routinely collected clinical data and applied a network perspective. In the network perspective, we us...
journal_title：International journal of environmental research and public health
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doi：10.3390/ijerph17093108
更新日期：2020-04-29 00:00:00
abstract：:The current study was conducted to assess the extent of maxillary arch collapse on the cleft vis-a-vis non-cleft sides in the same individual presenting withunilateral cleft lip and palate (UCLP), using cone-beam computed tomography (CBCT). Thirty-one children (eighteen boys andthirteen girls) with surgically repaired...
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pub_type： 杂志文章
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更新日期：2019-03-28 00:00:00
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journal_title：International journal of environmental research and public health
pub_type： 杂志文章
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更新日期：2019-07-30 00:00:00
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pub_type： 杂志文章
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更新日期：2016-03-08 00:00:00
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journal_title：International journal of environmental research and public health
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doi：10.3390/ijerph16112039
更新日期：2019-06-08 00:00:00
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journal_title：International journal of environmental research and public health
pub_type： 杂志文章
doi：10.3390/ijerph15040725
更新日期：2018-04-11 00:00:00
abstract：:Heat exposure can be a health hazard for many Australian workers in both outdoor and indoor situations. With many heat-related incidents left unreported, it is often difficult to determine the underlying causal factors. This study aims to provide insights into perceptions of potentially unsafe or uncomfortably hot wor...
journal_title：International journal of environmental research and public health
pub_type： 杂志文章
doi：10.3390/ijerph15030459
更新日期：2018-03-06 00:00:00
abstract：:Introduction: A sharp rise in the population of elderly people, who are more prone to somatic and mental diseases, combined with the high prevalence of type 2 diabetes mellitus and diabetes-associated complications in this age group, have an impact on the prevalence of depressive symptoms. Aim of the work: The work of...
journal_title：International journal of environmental research and public health
pub_type： 杂志文章
doi：10.3390/ijerph17103553
更新日期：2020-05-19 00:00:00
abstract：:Women's satisfaction is a part of the quality assurance process with potential to improve antenatal health services. The objective of this study was to assess the prevalence of women's satisfaction with antenatal care in an urban Kazakhstani setting and investigate associated factors. A total of 1496 women who deliver...
journal_title：International journal of environmental research and public health
pub_type： 杂志文章
doi：10.3390/ijerph15020325
更新日期：2018-02-13 00:00:00
abstract：BACKGROUND:This study compared the efficacy of two multi-component m-health interventions with a wait-list control group on body weight (primary outcome), and secondary outcomes of cardiovascular risk factors, lifestyle behaviours, and mental health. METHODS:Three-arm randomised controlled trial (Enhanced: physical ac...
journal_title：International journal of environmental research and public health
pub_type： 杂志文章,随机对照试验
doi：10.3390/ijerph17176200
更新日期：2020-08-26 00:00:00
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journal_title：International journal of environmental research and public health
pub_type： 杂志文章
doi：10.3390/ijerph15081754
更新日期：2018-08-15 00:00:00
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journal_title：International journal of environmental research and public health
pub_type： 杂志文章
doi：10.3390/ijerph17197334
更新日期：2020-10-08 00:00:00
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journal_title：International journal of environmental research and public health
pub_type： 杂志文章
doi：10.3390/ijerph13101023
更新日期：2016-10-20 00:00:00
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journal_title：International journal of environmental research and public health
pub_type： 杂志文章
doi：10.3390/ijerph18031051
更新日期：2021-01-25 00:00:00
abstract：:This study evaluated the effects of different matching methods on the accuracy of dentofacial integration in stereophotogrammetry and smartphone face-scanning systems. The integration was done (N = 30) with different matching areas (n = 10), including teeth image only (TO), perioral area without markers (PN) and with ...
journal_title：International journal of environmental research and public health
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更新日期：2020-02-10 00:00:00
abstract：BACKGROUND:Our understanding of gambling relapse is limited despite the damaging consequences affecting many aspects of the gambler's life. Paradoxically, regardless of these negative consequences problem gamblers (PGs) continue to relapse, seemingly unable to stop this cycle of harm. This paper addresses the phenomeno...
journal_title：International journal of environmental research and public health
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更新日期：2019-08-10 00:00:00
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journal_title：International journal of environmental research and public health
pub_type： 杂志文章,随机对照试验
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更新日期：2014-06-25 00:00:00
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journal_title：International journal of environmental research and public health
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doi：10.3390/ijerph13101039
更新日期：2016-10-24 00:00:00
abstract：:Background: Associations of early antibiotics exposures with childhood asthma, allergies, and airway illnesses are debated. Objectives: We aimed to investigate associations of first-year antibiotics exposure with childhood asthma, allergies, and airway illnesses. Methods: A cross-sectional study was conducted among pr...
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doi：10.3390/ijerph17165700
更新日期：2020-08-07 00:00:00
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doi：10.3390/ijerph18020428
更新日期：2021-01-07 00:00:00
abstract：:Background: to date, little attention has been given to gender differences in the health of migrants relative to native-born. In this study, we examine the health profile of the largest immigrant groups in metropolitan France, considering several health indicators and with a special interest in the gendered patterns. ...
journal_title：International journal of environmental research and public health
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更新日期：2020-11-25 00:00:00
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journal_title：International journal of environmental research and public health
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doi：10.3390/ijerph17218169
更新日期：2020-11-05 00:00:00
abstract：:The objective of this study is to analyse sick leave episodes of a university's collective of statutory workers in the State of São Paulo, between January 2010 and December 2015. For this, a descriptive study analysed 5776 registered spells of sick leave of four university units: agricultural sciences; human health, h...
journal_title：International journal of environmental research and public health
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doi：10.3390/ijerph16010017
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abstract：:Selected Volatile Organic Compounds (VOC) emitted from various anthropogenic sources including industries and motor vehicles act as primary precursors of ozone, while some VOC are classified as air toxic compounds. Significantly large VOC emission sources impact the air quality in Corpus Christi, Texas. This urban are...
journal_title：International journal of environmental research and public health
pub_type： 杂志文章
doi：10.3390/ijerph5030130
更新日期：2008-09-01 00:00:00
