Anaerobic treatment and resource recovery from methanol rich waste gases and wastewaters最新文献

Selenate bioreduction using methane as the electron donor in a biotrickling filter 以甲烷为电子供体的硒酸盐生物还原生物滴滤器

Anaerobic treatment and resource recovery from methanol rich waste gases and wastewaters Pub Date : 2019-08-20 DOI: 10.1201/9780367816520-6

Tejaswini Eregowda

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General introduction 总体介绍

Anaerobic treatment and resource recovery from methanol rich waste gases and wastewaters Pub Date : 2019-08-20 DOI: 10.1201/9780367816520-1

Tejaswini Eregowda

引用次数: 0

General discussion, conclusions 一般性讨论、结论

Anaerobic treatment and resource recovery from methanol rich waste gases and wastewaters Pub Date : 2019-08-20 DOI: 10.1201/9780367816520-9

Tejaswini Eregowda

{"title":"General discussion, conclusions","authors":"Tejaswini Eregowda","doi":"10.1201/9780367816520-9","DOIUrl":"https://doi.org/10.1201/9780367816520-9","url":null,"abstract":"We studied the relationships between prenatal exposure to PCBs and postnatal exposure to PCBs and dioxins on the one hand, and the neurological and cognitive development at 42 months on the other. In order to be able to detect small negative effects of PCB and dioxin exposure, we followed a large group of children (n=418) at low risk of developmental deficit from birth. For each mother/infant pair, a wide range of social, obstetrical, nutritional, and perinatal conditions was recorded and in the statistical analyses, if necessary, adjustments were made for differences. Breast milk not only is a source of toxic substances such as PCBs and dioxins, but it also contains components that are considered to be essential for optimal child development. In order to solve this controversy, the early type of feeding was explored in addition to the effects of lactational exposure to PCBs and dioxins. We found a beneficial effect of breast-feeding on neurological development at 42 months and at nine years of age. Our findings are in accordance with several other studies which have also shown a positive relationship between breast-feeding and brain development 1-6. Furthermore, in the present study no effects of lactational exposure to PCBs and dioxins could be detected, although plasma PCB levels of breast-fed 42-month-olds were 4½ times as high as those among formula-fed children. In all, despite the contamination of human milk with PCBs and dioxins, breast-feeding is the most optimal feeding method during the first period of life. Prenatal exposure to PCBs was negatively associated with cognitive abilities at 42 months, but not with neurological development at that age. Both the cognitive and the neurological development are parameters of brain integrity. But they reflect different functions of the brain and they are assessed in a basically different manner. Cognitive tests, including the Kaufman Assessment Battery for Children, measure children's abilities in a quantitative way, whereas the neurological examination measures functioning in a qualitative fashion. More importantly, in our age group the neurological examination might not have enough discriminating power to discern differences in motor behaviour due to perinatal exposure to PCBs and dioxins. At 42 months the so called 'higher' functions, that is the more complex motor skills which are cortically mediated, have not yet developed 7. Long-term follow-up and similar research in areas where the environmental PCB and/or dioxin exposure is","PeriodicalId":317163,"journal":{"name":"Anaerobic treatment and resource recovery from methanol rich waste gases and wastewaters","volume":"295 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116454902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Literature review 文献综述

Anaerobic treatment and resource recovery from methanol rich waste gases and wastewaters Pub Date : 2019-08-20 DOI: 10.1201/9780367816520-2

Tejaswini Eregowda

引用次数: 0

Selenate and thiosulfate reduction using methanol as electron donor 以甲醇为电子供体还原硒酸盐和硫代硫酸盐

Anaerobic treatment and resource recovery from methanol rich waste gases and wastewaters Pub Date : 2019-08-20 DOI: 10.1201/9780367816520-3

Tejaswini Eregowda

引用次数: 0

Performance of a biotrickling filter for anaerobic utilization of gas-phase methanol coupled to thiosulphate reduction and resource recovery through volatile fatty acids production 生物滴滤池厌氧利用气相甲醇与硫代硫酸盐还原及挥发性脂肪酸资源回收的性能研究

Anaerobic treatment and resource recovery from methanol rich waste gases and wastewaters Pub Date : 2019-08-20 DOI: 10.1201/9780367816520-4

Tejaswini Eregowda

引用次数: 0

Gas-phase methanol fed anaerobic biotrickling filter for the reduction of selenate under step and continuous feeding conditions 气相甲醇进料厌氧生物滴滤池在步进连续进料条件下还原硒酸盐

Anaerobic treatment and resource recovery from methanol rich waste gases and wastewaters Pub Date : 2019-08-20 DOI: 10.1201/9780367816520-5

Tejaswini Eregowda

引用次数: 0