Journal of Earth and Environmental Sciences Research最新文献_第7页

Solubilization of Phosphorus by Isolated Fungus of Iron ore Tailings 分离真菌对铁矿尾矿中磷的增溶作用

Journal of Earth and Environmental Sciences Research Pub Date : 2020-12-31 DOI: 10.47363/jeesr/2020(2)133

Glalber Luiz da Rocha Ferreira, G. Sadoyama

{"title":"Solubilization of Phosphorus by Isolated Fungus of Iron ore Tailings","authors":"Glalber Luiz da Rocha Ferreira, G. Sadoyama","doi":"10.47363/jeesr/2020(2)133","DOIUrl":"https://doi.org/10.47363/jeesr/2020(2)133","url":null,"abstract":"In view of the high technological expectations in the mining sector today, an inability of miners to reach their totality in the use of minerals present in nature is verified, and this is caused primarily by the use of methods considered fallible in the mining process. In view of this condition, it is necessary to develop new technologies with innovative behavior, seeking more productive forms. Among the existing technologies, a study with a technological and promising view is proposed, which deals with the process of phosphorus biosolubilization from a synthetic source considered insoluble by a fungus isolated from iron ore. Genetic tests revealed that the microorganism belongs to the Aspergillus genus, that is, the Aspergillus terreus species. The analytical tests proposed in this study pointed to a solubilization of 90.93 % of phosphorus by fungal biomass, which corresponds to 296.56 mg L-1 of soluble phosphorus, occurring in a 168 hour process, accounting for an average solubilization of 1,76 mg h-1. The biosolubilization process proved to be a great technological alternative in reducing production costs and establishing the sustainability of the mineral extraction system, being a viable alternative in purifying and adding value to iron ore, and also in obtaining another compound consisting of phosphorus, generating a new economic source, as an example in the production of fertilizers.","PeriodicalId":417186,"journal":{"name":"Journal of Earth and Environmental Sciences Research","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127945480","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

Phosphorus Biosolubilization by Micro-Organisms 微生物对磷的生物增溶作用

Journal of Earth and Environmental Sciences Research Pub Date : 2020-12-31 DOI: 10.47363/jeesr/2020(2)132

Glalber Luiz da Rocha Ferreira, José Daniel Gonçalves Vieira

引用次数: 0

Fodder Beet (Beta Vulgaris Var Crassa) Yield and Quality Attributrs As Affected By Nitrogen Fertilization and Foliar Boron Application 施氮和叶面硼对饲用甜菜产量和品质的影响

Journal of Earth and Environmental Sciences Research Pub Date : 2020-12-31 DOI: 10.47363/jeesr/2020(2)131

E. Al-Jbawi, Faddi Abbas

引用次数: 0

Nutrient Dynamics Buoy (Ndb) Sensor Data and Calibration Report 营养动态浮标 (Ndb) 传感器数据和校准报告

Journal of Earth and Environmental Sciences Research Pub Date : 2020-12-31 DOI: 10.47363/jeesr/2020(2)134

Alex Lisowsky

引用次数: 0

Legal and Policy Analysis of Carbon Capture and Storage in China 中国碳捕集与封存的法律与政策分析

Journal of Earth and Environmental Sciences Research Pub Date : 2020-09-30 DOI: 10.47363/jeesr/2020(2)129

Q. Gao

引用次数: 0

Review on Conservation Agriculture in Ethiopia: Status of Application, Opportunities and Challenges 埃塞俄比亚保护性农业综述:应用现状、机遇与挑战

Journal of Earth and Environmental Sciences Research Pub Date : 2020-09-30 DOI: 10.47363/jeesr/2020(2)127

Abdissa Bekele, Abdissa Abebe

{"title":"Review on Conservation Agriculture in Ethiopia: Status of Application, Opportunities and Challenges","authors":"Abdissa Bekele, Abdissa Abebe","doi":"10.47363/jeesr/2020(2)127","DOIUrl":"https://doi.org/10.47363/jeesr/2020(2)127","url":null,"abstract":"Conservation agriculture has been considered as the potential not only to increase the sustainability of agricultural productivity, but also to help works toward mitigation and adaption of climate change. Farming and soil management practices included in conservation agriculture are based on three core principles, which must be fulfilled concomitantly Minimum soil disturbance, Maintenance of permanent soil covers and Cropping system diversity, crop rotations. The objective of this document is therefore to review the implementation status, opportunities, challenges and limitation of conservation agriculture practices in Ethiopia. Conservation agriculture has economic as well as climatic advantages. The soil conservation practices, including minimum or no tillage have long been practiced by farmers with different approaches or systems in Ethiopia, conservation agriculture and its associated package of best practices were introduced in 1998. Presence of traditional practices contributing for conservation agriculture principle and socioeconomic and extension facilities are some of factors affecting adoption of conservation agriculture in Ethiopia while, Climate change prevention activities and untapped opportunity for the wide-scale promotion are some opportunities for adoption of Conservation Agriculture in Ethiopia. The principal goal of climate smart agriculture is identified as food security and development, while productivity, adaptation, and mitigation are identified as the three interlinked pillars necessary for achieving this goal. Key challenge with mainstreaming conservation agriculture systems relate to problems with up-scaling which is largely due to the lack of knowledge, expertise, inputs (especially equipment and machinery), adequate financial resources and infrastructure, and poor policy support.","PeriodicalId":417186,"journal":{"name":"Journal of Earth and Environmental Sciences Research","volume":"2016 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134411823","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

Assessment of Bore Whole Water in Oroworukwu Port Harcourt, Rivers State, Nigeria 尼日利亚河流州Oroworukwu港Harcourt钻孔全水评价

Journal of Earth and Environmental Sciences Research Pub Date : 2020-09-30 DOI: 10.47363/jeesr/2020(2)122

Akinfolarin Om

{"title":"Assessment of Bore Whole Water in Oroworukwu Port Harcourt, Rivers State, Nigeria","authors":"Akinfolarin Om","doi":"10.47363/jeesr/2020(2)122","DOIUrl":"https://doi.org/10.47363/jeesr/2020(2)122","url":null,"abstract":"Water quality has become a serious issue to economic and social sustainable development, not only because of the imbalance between available scant water resource and dense population, but also the inefficiency of water resources regulation and management. This study is aimed at assessing the quality of borehole water at the study areas and to compare with standards, Water samples were collected from three stations (Mile 1 to 3) at nine points in oroworukwu area of Port Harcourt. Physicochemical parameters were analysed which includes pH, alkalinity, turbidity, temperature, salinity, total dissolved solid, conductivity, chloride, nitrate, and heavy metals. Bacterial analysis done included total coliform count, total fecal count and total heterotrophic bacteria. The results obtained showed a pH ranged of 4.8-5.9 which was below the permissible limit (6.8-7.8) of World Health Organization (WHO) and Nigeria Industrial Standard (NIS). All other physicochemical parameter results were within permissible limits. There were no bacteria detected in the water which indicated that the water was not contaminated. In any case there is a need to treat the water to raise the pH to the acceptable value of WHO and NIS.","PeriodicalId":417186,"journal":{"name":"Journal of Earth and Environmental Sciences Research","volume":"211 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132726515","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

Car Sharing In a Compact City: Pinning Down the Benefits and Barriers 紧凑型城市中的汽车共享:确定利益和障碍

Journal of Earth and Environmental Sciences Research Pub Date : 2020-09-30 DOI: 10.47363/jeesr/2020(2)123

R. Chapman, Lucia Sobiecki

引用次数: 1

Snow is Not an Enemy, But another Road in Winter 雪不是敌人，而是冬天的另一条路

Journal of Earth and Environmental Sciences Research Pub Date : 2020-09-30 DOI: 10.47363/jeesr/2020(2)126

O. Khalidullin

引用次数: 0

Road Adaptation to Climate Hazards: Guidelines for Cost-Effective Measures 适应气候灾害的道路:成本效益措施指南

Journal of Earth and Environmental Sciences Research Pub Date : 2020-09-30 DOI: 10.47363/jeesr/2020(2)125

A. Mouratidis

{"title":"Road Adaptation to Climate Hazards: Guidelines for Cost-Effective Measures","authors":"A. Mouratidis","doi":"10.47363/jeesr/2020(2)125","DOIUrl":"https://doi.org/10.47363/jeesr/2020(2)125","url":null,"abstract":"Climate change and extreme weather events present a significant challenge to the safety, reliability, effectiveness and sustainability of every transportation system. Extreme weather events such as tsunami waves, wildfires, floods and hurricanes constitute a big risk for the integrity of the road transport system, since they can severely harm the infrastructure and its assets. Far more disastrous is the eventual direct impact on passengers, vehicles and goods, suddenly and unforeseeably hit by the weather event while moving on the roadway. In the field of road adaptation to climate threats, different scientific approaches have been developed but they have not produced, so far, the expected results, as the road transport sector still suffers from extreme climate hazards. The present scientific paper investigates the reasons for this failure and suggests a different perspective for realistic and cost-effective measures of proactive character to reinforce the road infrastructure and to increase its resilience to climate threats. It makes distinction between preventive and protective measures, including intercepting engineering assets and digital alarm systems. Moreover, the scientific paper introduces several key-points, in terms of fundamental recommendations of a different perspective of the climate change impact on the road infrastructure. In this regard, it may constitute a useful tool for transport authorities and operators to rationally plan interventions on a road network scale.","PeriodicalId":417186,"journal":{"name":"Journal of Earth and Environmental Sciences Research","volume":"177 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121317747","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