Linnaeus Eco-Tech最新文献

A multi criteria approach for energy recovery from solid municipal waste 城市固体废物能源回收的多准则方法

Linnaeus Eco-Tech Pub Date : 2019-10-23 DOI: 10.15626/eco-tech.2005.061

A. Voronov, M. Belova

引用次数: 0

Production of biogas from cattle waste at low temperature 利用牛粪在低温下生产沼气

Linnaeus Eco-Tech Pub Date : 2019-10-23 DOI: 10.15626/eco-tech.2005.062

T. Yeole, N. Deshmukh, K. L. Lapsiya, D. Ranade

{"title":"Production of biogas from cattle waste at low temperature","authors":"T. Yeole, N. Deshmukh, K. L. Lapsiya, D. Ranade","doi":"10.15626/eco-tech.2005.062","DOIUrl":"https://doi.org/10.15626/eco-tech.2005.062","url":null,"abstract":"Production of Bio gas from cattle waste and other biomass is now considered as one of the majorroutes to obtain gaseous fuel for sustainable development. In tropical countries like Indiathousands of rural families in villages are using 3 to 5 M3 biogas plants to suffice their dailycooking fuel need. All these plants are run on cattle waste. Since these plants are operated atambient temperatures, effect of temperature variation affects daily gas yield. The effect becomesvery prominent during winter season. In general about 50-60% reduction in daily biogas yield isobserved when ambient temperature is around l 5°C as compared to that produced at around 30-350C. A low cost and simple to operate technique to enhance biogas yield from the biogas plantduring winter season shall help to get optimum biogas yield from these plants during the winterseason. We thought of a simple technique of filtering the digested effluent slurry of biogas plantthrough a triple layer muslin cloth to obtain a filtrate, hence-forth called as clarified digestedslurry (CDS), rich in cell mass and then adding it back to the biogas plant along with the influentslurry. Experiments were carried out on 25 L capacity cattle dung biogas plant operated at 15°Cto see effect of recirculation of CDS. Addition of 25 and 40% v/v CDS in daily influent resultedin 15% and 37% increase in daily biogas yield. Recirculation of 40% v/v CDS supplementedwith Diammonium phosphate(DAP) increased the biogas yield by 75% v/v. In anotherexperiment use of clarified rumen fluid (CRF) to prepare influent slurry and added exclusivelyfor one day enhanced the daily biogas yield by 70% v/v for a period of two months. Popular dailywears in India called cotton dhoti or cotton sari can be used for the filtration of the slurry.","PeriodicalId":321575,"journal":{"name":"Linnaeus Eco-Tech","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128619519","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}

引用次数: 0

Water reclamation & phyto -technologies 水回收与植物技术

Linnaeus Eco-Tech Pub Date : 2019-10-22 DOI: 10.15626/eco-tech.2005.035

M. Giannotti

{"title":"Water reclamation & phyto -technologies","authors":"M. Giannotti","doi":"10.15626/eco-tech.2005.035","DOIUrl":"https://doi.org/10.15626/eco-tech.2005.035","url":null,"abstract":"In this paper conventional and innovative phyto-technologies, applied on different kinds ofpolluted waters to obtain their safe reuse, are showed. Today, the last frontier ofenvironmental recovery in the world is: Water Reclamation. Most important targets of waterreclamation are: recover and reuse wastewaters in safety, freshwater aquifer recharge, publichealth protection, and new economic viable source. There are a lot of technologies to treatdifferent kinds of wastewaters (urban, industrial, zootechnical, etc), but conventionaltechnologies able to treat, recover and reuse wastewaters in the same time, are very few and soexpensive that the cost of recovered water is no sustainable by public administrations; overallin the developing countries in Africa, Asia, South and Centre America (F AO-WHO).In the latest years, phyto-technologies proved their efficiency in the wastewater reclamationand their cheap and easy way to be built and maintained. The phyto-technologies experiencesshown in this paper are applied on polluted waters from industries and agroindustries, pigfeedlot, towns, and polluted water of rivers and/or lakes. The paper is completed withanalytical data and results; compared with national and/or international (F AO-WHO) lawlimits for reclaimed waters; and building and maintenance costs, compared with conventionalactivated sludge systems.We speak about projects financed by public administrations or international organizations(F AO-European Union) and realized to reclaim and reuse treated wastewaters usingconventional and/or advanced phytoremediation technologies. All this has opened a newcheap and easy way, to reuse in safety treated waters, to protect environment, and to controlfresh water pollution.","PeriodicalId":321575,"journal":{"name":"Linnaeus Eco-Tech","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123531018","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}

引用次数: 0

Stabilization of CCA-contaminated soil with iron products - a field experiment 铁产品稳定cca污染土壤的田间试验

Linnaeus Eco-Tech Pub Date : 2019-10-22 DOI: 10.15626/eco-tech.2005.040

C. Maurice, B. Gustavsson, J. Kumpiene, S. Lidelöw

{"title":"Stabilization of CCA-contaminated soil with iron products - a field experiment","authors":"C. Maurice, B. Gustavsson, J. Kumpiene, S. Lidelöw","doi":"10.15626/eco-tech.2005.040","DOIUrl":"https://doi.org/10.15626/eco-tech.2005.040","url":null,"abstract":"Chemical stabilization of metals is lately considered as a possible pretreatment for soilcontaminated with average levels of trace elements. The element mobility in soil can bealtered by adding soil amendments that can adsorb, complex, or co-precipitate trace elements.As a consequence, pollutant spreading from the contaminated soil and effect on the recipientcan be reduced. The different contaminants originating from wood impregnation chemicals,e.g. Cu, Cr, and As limit the choice of amendments because e.g. large pH fluctuations andconsequent mobilization of Cu or As should be avoided. The results show that the leaching ofarsenic is lowest in the lysimeter with 15% Fe3O4. In both lysimeters with untreated soil andwith 1 % Fe 0, the arsenic leaching seems to decrease with the sampling depth. The leaching ofcopper is generally low. Further the addition of iron seems to increase the leaching ofmanganese and nickel but to reduce the leaching of zinc. Results from the laboratoryexperiment show that the arsenic content in the leachate is lowest with the highest mixture ofmagnetite. Mixing is one of the key issues when discussing the treatment efficiency andpossible use of the treated soil. The results so far indicate that magnetite can be used fortreatment of CCA contaminated soil also at a large scale. Reduction of both arsenic andcopper using a single amendment is challenging as they behave opposite. Magnetite seems tobe a promising amendment even though a high amount of amendment needs to be added.Moreover, the potential establishment of reducing conditions at larger depths in the soil is ofconcern since this might lead to a rapid increase in arsenic leaching","PeriodicalId":321575,"journal":{"name":"Linnaeus Eco-Tech","volume":"138 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122269993","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}

引用次数: 3

A practical application for monitoring methane in ambient air at waste disposal facillities using a portable open path analyzer 利用便携式开路分析仪监测废物处理设施环境空气中甲烷的实际应用

Linnaeus Eco-Tech Pub Date : 2019-10-22 DOI: 10.15626/eco-tech.2005.060

Noboru Tanikawa, T. Furuichi, K. Ishii, Kohji Matsuo

引用次数: 0

Lepidium sativum L. as test-organism for assessment of environmental pollution Lepidium satium L.作为环境污染评价的试验生物

Linnaeus Eco-Tech Pub Date : 2019-10-22 DOI: 10.15626/ECO-TECH.2005.055

D. Marčiulionienė, D. Montvydienė, Vilmantė Karlavičienė, W. Hogland

{"title":"Lepidium sativum L. as test-organism for assessment of environmental pollution","authors":"D. Marčiulionienė, D. Montvydienė, Vilmantė Karlavičienė, W. Hogland","doi":"10.15626/ECO-TECH.2005.055","DOIUrl":"https://doi.org/10.15626/ECO-TECH.2005.055","url":null,"abstract":"Polluting substances when released into environment become one of the main factors ofenvironmental pollution since they cause changes to the chemical composition of water,bottom sediments and soil; they also disturb the biological balance and self-cleaningprocesses of the ecosystem that may lead to unpredictable alterations within the ecosystem.Together with the chemical and physical techniques the methods of bioindication andbiotesting are employed in the current research on environmental pollution and its impact onthe ecological integrity of ecosystems,The aim of this paper was to determine the sensitivity of a test-organism L sativum to thetoxic impact of different types of samples (liquid or solid: surface water, industrialwastewater, industrial storm water, landfill leachate, lake bottom sediments and sludge fromindustrial storm water sedimentation tank) from urban environment and chemical substancesand to demonstrate the possibilities of application of this plant in both the toxicologicalinvestigation and environmental pollution assessment.The results of conducted investigation have proved that L. sativum is a sufficiently universal,cheap and sensitive biotest for determination of toxicity of different types of samples (stormwater, bottom sediments, soil, wastewater from industrial sites, landfill leachate) and includedchemical substances. Therefore, it can be successfully applied in the environmental pollutionassessment.","PeriodicalId":321575,"journal":{"name":"Linnaeus Eco-Tech","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123911360","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}

引用次数: 0

The testing of model plant Raphanus sativus germination and phytomass production on oil-composts 模式植物莴苣在油料堆肥上萌发及生物量的试验

Linnaeus Eco-Tech Pub Date : 2019-10-22 DOI: 10.15626/eco-tech.2005.057

M. Noormets, K. Kauer, T. Köster, M. Kriipsalu, Aive Jänes, A. Merivee

{"title":"The testing of model plant Raphanus sativus germination and phytomass production on oil-composts","authors":"M. Noormets, K. Kauer, T. Köster, M. Kriipsalu, Aive Jänes, A. Merivee","doi":"10.15626/eco-tech.2005.057","DOIUrl":"https://doi.org/10.15626/eco-tech.2005.057","url":null,"abstract":"In industrialized society, large amounts of oily sediments from contaminated sites as well asoily sludge from industrial processes need to be treated in sustainable way. Nowadaysbiological treatment is becoming more important. The purpose of biotreatment is to decreasethe concentration of organic pollutants (e.g. oil) in soil or compost by mineralizing hazardouschemicals into harmless compounds such as carbon dioxide or some other gas or inorganicsubstance, water, and cell material. Whereas hydrocarbons are generally well degradable,some organic compounds (e.g. PAH) are less degradable; and some (heavy metals) can not bedegraded. However, resistant compounds can be transformed through sorption, methylation,and complexation, and change in valence state, which affect mobility and bioavailability. Theuse of oil-compost depends on legislative limits, and response of vegetation. Oil-content mayhave a negative effect on plant root system even in low concentrations. Heavy metals mayinhibit the growth, but in the other hand, the plants are also known in uptaking heavy metalsand other contaminants, known as phytoremediation. This may create a situation, wherevegetation cover acts as additional treatment system for matured oil-composts. The objectiveof this study was to examine the effect of hydrocarbon residues in different substances(compost and soil mixtures) on soil model plants (Raphanus sativus) germination andphytomass production. The germination study demonstrated that the plants germination andbiomass production was highly dependent on compost decomposition degree, nutrient contentand biological properties of soil. On less matured compost, the germination and growth wassuppressed. The phytomass production experiment showed that plants in oil compost haddecreased height, taproot mass and above ground phytomass. The application of complexmineral fertilizers increased the volume of abovementioned parameters.","PeriodicalId":321575,"journal":{"name":"Linnaeus Eco-Tech","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114890124","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}

引用次数: 0

Biological treatment of landfill leachate: efford landfill, Hampshire, UK - a case study 垃圾渗滤液的生物处理:英国汉普郡福德垃圾填埋场的案例研究

Linnaeus Eco-Tech Pub Date : 2019-10-21 DOI: 10.15626/eco-tech.2005.038

Jonty Olufsen, H. Robinson

{"title":"Biological treatment of landfill leachate: efford landfill, Hampshire, UK - a case study","authors":"Jonty Olufsen, H. Robinson","doi":"10.15626/eco-tech.2005.038","DOIUrl":"https://doi.org/10.15626/eco-tech.2005.038","url":null,"abstract":"Demand for of on-site treatment schemes that are capable of treating landfill leachates to highstandards has grown substantially during the last two decades. Increasingly, plants are beingrequired to discharge high quality effluents directly into surface watercourses, or to provide ahigh degree of treatment prior to discharge into the public sewerage system. This trend is certainto continue - primarily driven in the United Kingdom in recent months by the requirements of theEU IPPC Directive, which demands the application of Best Available Techniques (BAT), and bythe EU Water Framework Directive.Aerobic biological treatment of leachate from domestic landfills has widely been shown to be themost appropriate, reliable and successful treatment technique to consistently meet stringentdischarge constraints with minimal operator input. The cost of this technology is also oftenfavourable, when compared with alternative processes. More than 50 plants of this type arecurrently operational in the United Kingdom, making it by far the most widely adopted on-sitetreatment technology, and many other examples exist overseas.This paper provides a detailed case study of the design, construction and commissioning of abiological, Sequencing Batch Reactor (SBR) leachate treatment plant for Hampshire CountyCouncil, at Efford Landfill Site in the New Forest in Hampshire, UK.Since plant commissioning was completed by the authors during early 2003, extensive anddetailed monitoring data have been collected. These are presented for the plant, which is capable 3 of treating up to 150 m /day of strong methanogenic leachate (ammoniacal-N from 600-1 000mg/1), and are compared with treatment performances achieved at other full-scale leachatetreatment plants. The paper shows 80D5 and ammoniacal-N removal efficiencies in excess of99%.Results also show the efficiency of polishing treatment in a reed bed, before discharge of finaleffluent to public sewer.","PeriodicalId":321575,"journal":{"name":"Linnaeus Eco-Tech","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127780749","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}

引用次数: 0

Study on recovery of biogas from mixed biowaste for regional biogasification system 区域沼气系统混合生物垃圾沼气回收研究

Linnaeus Eco-Tech Pub Date : 2019-10-21 DOI: 10.15626/eco-tech.2005.054

T. Komatsu, Rokuta Inaba, T. Furuichi, N. Nishi, Noboru Tanikawa

{"title":"Study on recovery of biogas from mixed biowaste for regional biogasification system","authors":"T. Komatsu, Rokuta Inaba, T. Furuichi, N. Nishi, Noboru Tanikawa","doi":"10.15626/eco-tech.2005.054","DOIUrl":"https://doi.org/10.15626/eco-tech.2005.054","url":null,"abstract":"Even in Japan, the energy recovery from a waste became the importance by not only wastetreatment problem but also environmental problem which carbon dioxide (CO2) causes. Theenergy recovery is being measured from organic waste. However, the construction of thedisposing facility does not advance in actually various factors. As the one factor, the property ofa organic waste variously changes by the discharge source such as home, food shop, supermarket, farm, sewage treatment plant, etc., and the energy recovery ratio changes with it. In thisstudy, the biogas generation of the waste which arose actually was obtained experimentally. Inaddition, the following were examined using waste generation in the region and the biogas frombiowaste : Electric power recovery, heat recovery, CO2 emission. In the garbage discharged, thegas generation magnification showed the very high, The gas yields seemed to be very high forbiowastes, since these is originally offered as foods. In case of the livestock manure, the gasyield over about 16 times per manure was obtained. The gas yield is not very dependent on theorganic substance content. This cause the bedding was included in the manure, and it seemed toaffect the organic substance content by the content and type. In case of the sewage sludge, thegas yield of about 3.5 times per sludge was got. As a result of the trial based on the wastegeneration in the region, electric power, heat can be utilized effectively. In addition, that thereduction was also possible on CO2 emission clarified.","PeriodicalId":321575,"journal":{"name":"Linnaeus Eco-Tech","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129335019","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}

引用次数: 1

Intensive dispersion technologies for extraction of humic substances from peat 从泥炭中提取腐殖质的密集分散技术

Linnaeus Eco-Tech Pub Date : 2019-10-21 DOI: 10.15626/eco-tech.2005.059

J. Sire, M. Kļaviņš

引用次数: 0