• Title/Summary/Keyword: mitigation potential

검색결과 309건 처리시간 0.026초

Barriers to Realization of Forestry Mitigation Potential in India

  • Murthy, Indu K;Prasad KV, Devi
    • Journal of Forest and Environmental Science
    • /
    • 제34권5호
    • /
    • pp.405-411
    • /
    • 2018
  • Implementation of mitigation options on land is important for realisation of the goals of the Paris Agreement to stabilize temperature at $2^{\circ}C$. In India, the Intended Nationally Determined Contribution (INDC) targets include a forestry goal of creation of carbon sinks of 2.5 to 3 billion tonnes by 2030. There are however, multiple barriers to implementation of forestry mitigation options in India. They include environmental, social, financial, technological and institutional barriers. The barriers are varied not just across land categories but also for a land category depending on its regional location and distribution. In addition to these barriers is the impeding climate change that places at risk realisation of the mitigation potential as rising temperatures, drought, and fires associated with projected climate change may lead to forests becoming a weaker sink or a net carbon source before the end of the century.

생태계교란식물의 확산 영향 예측에 따른 저감대책 시나리오 선정 (Selection of Mitigation Scenarios Based on Prediction of the Dispersion Impact of Ecosystem-Disturbing Plant Species on Ecosystems)

  • 이상욱;김윤지;정혜인;이지연;유영재;이관규;성현찬;전성우
    • 한국환경복원기술학회지
    • /
    • 제27권4호
    • /
    • pp.15-27
    • /
    • 2024
  • Ecosystem-disturbing plant species pose a significant threat to native ecosystems due to their high reproductive capacity, making it essential to monitor their distribution and develop effective mitigation strategies. Consequently, it is crucial to enhance the evaluation of the impacts of these species in environmental impact assessments by incorporating scientific evidence alongside qualitative assessments. This study introduces a dispersal model into the species distribution model to simulate the potential spread of ecosystem-disturbing plant species, reflecting their ecological characteristics. Additionally, we developed mitigation scenarios and quantitatively calculated reduction rates to propose effective mitigation strategies. The species distribution model showed a reliable AUC (Area Under the Curve) of at least 0.890. The dispersal model's results were also credible, with 31 out of 34 validation coordinates falling within the predicted spread range. Simulating the impact of the spread of ecosystem-disturbing plant species over the next five years revealed that one project site had potential habitats for Ambrosia artemisiifolia, necessitating robust mitigation measures such as seed removal. Another project site, with potential habitats for Symphyotrichum pilosum, indicated that physical removal methods within the site were effective due to the species' relatively short dispersal distance. These findings can serve as fundamental data for project executors and reviewers in evaluating the impact of the spread of ecosystem-disturbing plant species during the planning stages of projects.

Recent advances and future potential of anaerobic ceramic membrane bioreactors for wastewater treatment: A review

  • Cha, Minju;Kim, Soyoun;Park, Chanhyuk
    • Membrane and Water Treatment
    • /
    • 제11권1호
    • /
    • pp.31-39
    • /
    • 2020
  • Anaerobic membrane bioreactor (AnMBR) treatment has been widely studied in recent years because of the potential for production of bio-energy from wastewater and energy-positive operation of wastewater treatment plants. Several AnMBR systems, including those that incorporate ceramic membranes, take advantage of enhanced water permeability and low membrane fouling potentials. Given that differences in the ceramic membranes may influence the results of AnMBR studies, relevant details are discussed in this review, which focuses on the profiles of common ceramic membranes used in AnMBR, treatment and filtration performances of different anaerobic ceramic membrane bioreactors (AnCMBRs), and the membrane fouling mitigation methods available for effective AnCMBRs operation. The aim of this review is to provide a comprehensive summary of AnCMBR performance, feed wastewater characteristics, operating conditions, and the methods available for effective fouling mitigation.

태양열난방시스템 도입에 따른 주거부문에서의 온실가스 감축 잠재량 분석 (The Greenhouse-Gas Mitigation Potential analysis by Distribution of Solar Thermal System in Housing Sector)

  • 정영선;문선혜;유기형
    • 한국태양에너지학회 논문집
    • /
    • 제32권1호
    • /
    • pp.32-39
    • /
    • 2012
  • New and renewable energy systems(solar thermal system, photovoltaic system, geothermal system, wind power system) are environmentally friendly technologies and these in South Korea are very important measures to reduce greenhouse-gas(GHG) and to push ahead with Green Growth. The purpose of this paper is to analyze GHG mitigation potential by distribution of solar thermal system in housing sector with bottom-up model called 'Long-range Energy Alternative Planning system'. Business as usual(BAU) was based on energy consumption characteristic with the trend of social-economic prospects and the volume of housing. The total amount of GHG emission of BAU was expected to continuous increase from 66.0 million-ton $CO_{2e}$ in 2007 to 73.1 million-ton $CO_{2e}$ in 2030 because of the increase of energy consumption in housing. The alternative scenario, distribution of solar thermal system in housing sector had GHG mitigation potential 1.54 million-ton $CO_{2e}$ in 2030. The results of this study showed that new and renewable energy systems made a contribution of reducing the use of fossil fuel and the emission of greenhouse-gas in building.

Analysis of steam generator tube rupture accidents for the development of mitigation strategies

  • Bang, Jungjin;Choi, Gi Hyeon;Jerng, Dong-Wook;Bae, Sung-Won;Jang, Sunghyon;Ha, Sang Jun
    • Nuclear Engineering and Technology
    • /
    • 제54권1호
    • /
    • pp.152-161
    • /
    • 2022
  • We analyzed mitigation strategies for steam generator tube rupture (SGTR) accidents using MARS code under both full-power and low-power and shutdown (LPSD) conditions. In general, there are two approaches to mitigating SGTR accidents: supplementing the reactor coolant inventory using safety injection systems and depressurizing the reactor coolant system (RCS) by cooling it down using the intact steam generator. These mitigation strategies were compared from the viewpoint of break flow from the ruptured steam generator tube, the core integrity, and the possibility of the main steam safety valves opening, which is associated with the potential release of radiation. The "cooldown strategy" is recommended for break flow control, whereas the "RCS make-up strategy" is better for RCS inventory control. Under full power, neither mitigation strategy made a significant difference except for on the break flow while, in LPSD modes, the RCS cooldown strategy resulted in lower break and discharge flows, and thus less radiation release. As a result, using the cooldown strategy for an SGTR under LPSD conditions is recommended. These results can be used as a fundamental guide for mitigation strategies for SGTR accidents according to the operational mode.

포항철강산업단지의 온실가스 잠재 감축량 분석 (Analysis of Potential Greenhouse Gas Mitigation in Pohang Steel Industrial Complex)

  • 이광구
    • 청정기술
    • /
    • 제20권4호
    • /
    • pp.439-448
    • /
    • 2014
  • 포항철강산업단지의 온실가스 잠재 감축량에 대한 연구를 수행하였다. 2010년 기준 철강산단의 온실가스 배출량은 4,174,000~4,574,000 $tCO_2-eq$로 추정되고, 정부의 온실가스 감축 목표를 달성하기 위해서 2020년까지 최소 552,000 $tCO_2-eq$의 온실가스 감축이 요구된다. 온실가스 잠재 감축량을 추정하기 위하여, 자발적 온실가스 감축사업에 등록된 사례 기술들을 온실가스 목표관리제도 대상으로 지정된 51개 기업의 공정에 적용하였다. 기술적 용이성과 투자비 회수기간 측면에서 분석한 결과, 연료전환과 폐열회수를 이용하여 단기적으로 160,000 $tCO_2-eq$를 감축할 수 있는 것으로 예상된다. 중기적으로는 철강금속 산업 분야에 적용 가능한 열 부문과 전기 부문 기술을 이용하면 각각 229,000과 125,000 $tCO_2-eq$를 감축할 수 있을 것으로 예상된다. 온실가스 예상 목표 감축량 대비 중 단기 기술로 달성할 수 없는 차이(38,000 $tCO_2-eq$)에 대해서는 장기적으로 근본적인 공정 혁신과 최신 설비 및 신재생에너지 기술 도입을 통한 감축 노력이 필요하다.

New Scientific Developments in the Health Benefits of Spirulina(Arthrospira): Phycocyanin and its Potential Health Benefits

  • Belay, Amha
    • Nutritional Sciences
    • /
    • 제7권3호
    • /
    • pp.165-173
    • /
    • 2004
  • This paper reviews the available published literature on the antioxidant, anti-inflammatory, and COX-2 inhibition properties of phycocyanin from Spirulina. The potential application of for the prevention and mitigation of such radical-induced chronic diseases like cancer and heart disease, and age-related degenerative diseases like Alzheimer's disease, Parkinson's disease, diabetes and other conditions are discussed based on the available evidence.

녹색생활 실천에 따른 가정부문의 이산화탄소 감축잠재량 및 경제적 효과 분석 (Analysis on CO2 Mitigation Potential and Economic Effect of Green Life in the Residential Sector in Korea)

  • 진형아;여소영;윤소원;김대곤;서정현;홍유덕;한진석
    • 한국대기환경학회지
    • /
    • 제29권5호
    • /
    • pp.668-681
    • /
    • 2013
  • The Korean government announced a national mid-term target to reduce 30% of greenhouse gas (GHG) emissions from business-as usual (BAU) level by 2020 in a voluntary and independent manner. In this study, we examined the $CO_2$ mitigation potential and conducted an economic effect analysis of green living actions in households in Korea. We also proposed some ways to implement green life to achieve the national target. If green lifestyle takes root in households nationwide, $CO_2$ emission would be reduced to 27.3% of the emission in 2007. This would save the country about 4.93 trillion won per year and each household could save about 300,000 won per year, which accounts for about 0.5% of GDP (as of 2007). Considering the five-year plan for green growth to invest 2% of GDP in green growth every year, this would not only reduce the economic burden on households, industries and the country but also increase economic growth potential by reinvesting the saved resources into green growth. Heating and lighting would be the greatest contributor to GHG mitigation of green life in the residential sector. It means we could achieve the national goal by reducing unnecessary heating and lighting and using energy-saving electric home appliances. The implementation of green living actions would reduce a significant amount of greenhouse gas emissions, ultimately relieving the burden on businesses to reduce GHG emissions. And it is one of the most cost-effective mitigation tools in order to achieve the mid-term GHG mitigation goal.

직류전기철도 전식대책 실증실험(2) 속응형 정전위 정류기 (Field Test of Mitigation Methods for Stray Currents from DC Electric Railroad(2) Rapid Potential-Controlled Rectifier)

  • 하윤철;하태현;배정효;이현구;김대경;최정희
    • 대한전기학회:학술대회논문집
    • /
    • 대한전기학회 2007년도 추계학술대회 논문집 전기기기 및 에너지변환시스템부문
    • /
    • pp.217-219
    • /
    • 2007
  • With the wide spread of direct current(DC) electric railroads in Korea, the stray current or leakage currents from negative return rails become a pending problem to the safety of nearby underground Infrastructures. The most widely used mitigation method for this interference is the stray current drainage method, which connects the underground metallic structures to the rails with diodes (polarized drainage) or thyristor (forced drainage). This method, however, inherently possesses some drawbacks such as an increase of total leakage torrents from rails, expansion of interference zone, etc. In order to resolve these drawbacks, we developed a rapid potential-controled rectifier and applied to a depot area where stray current inference is very severe. The effect of this method was analyzed from the field tell data and we suggest this method can be an excellent alternative to the drainage-bond-based mitigation methods.

  • PDF

Corporation's Adaptation to Climate Change Related Natural Disasters : Embedding Resiliency in Supply Chain - A Study on Climate Change Related Natural Disaster Adaptation for Corporations -

  • Pak, Myong Sop;Kim, In Sun
    • 무역상무연구
    • /
    • 제64권
    • /
    • pp.239-264
    • /
    • 2014
  • Two types of responses to climate change exist. First is climate mitigation which includes efforts of reducing CO2 and GHG emissions. Second response is climate adaptation process which is establishing climate resilience in the supply chain. The two are inherently different since mitigation strategy focus on eliminating the source of climate change and is long term in nature but adaptation strategy is moderating the impact of potential or current climate change. In order to embed climate resilience in the supply chain, mitigation strategies and adaption strategies must be implemented simultaneously. Corporation's adaptation to climate change related natural disaster can be seen as a response that includes mitigation and adaptation strategies simultaneously. A comprehensive climate change resilience supply chain approach has to be developed. This paper illustrated guidelines and adaptation process framework businesses can utilize in order to build climate resilience. Screening process before the actual assessment of risk was introduced as well as the whole adaptation process of establishing information system and strengthening climate-related operational flexibility.

  • PDF