Carbon Dioxide –Significant Emission Sources and Decreasing Solutions

Hydroelectrical Power Plant (Hpp) –Aspects Regarding The Operating And Maintenance Technologies

“… water lake can be used for drinking, industrial or irrigation water supply;  energy can be stored until the electricity production is disposed of; 1745  HPP doesn't produce greenhouse gases and doesn't pollute the atmosphere (Bardescu & Legendi, 2014);  dams become landmarks through the landscapes they offer;  Voinesti HPP, due to the maintenance operations periodically and carefully tracked, is a safe and reliable unit that ensures the necessary energy source and water supply.…”

“…Necessary maintenance operations inVoinesti HPP doi.org/10.15405/epsbs.2019.08.03.213 Corresponding Author: Amelitta Legendi Selection and peer-review under responsibility of the Organizing Committee of the conference eISSN: repairs: functional check of valves and electro-hoists; establishing and locating leaks of water, air and oil; closure and blocking of the flat valve of Lereşti polder power plug in closed position; closing and mechanical locking butterfly valves; water drainage from the forced duct, spiral casing and exhauster cone; oil evacuation from hydro-aggregate bearings; revision of the exhaustion system for water infiltration; closing mechanical valves on the intake section in the cooling water pumps(Bardescu, 2014) .-Exciter: revision of the cardan joint and throttle bearings, bearing replacement; revision of the inspection windows from the brush collectors by filling the screws from the inspection screens;centring the exciter casing.-Radial-axial sliding bearing: cooling water circuit revision (pipe inspection, connectors and valves);cooling coat with internal sanding caps and restoration anti-corrosion protection, leak proof, check bolts, replace where necessary-the sealing paste will be used when refitting; check-up, eventual axial segments replacement, work surface preparation and insulation restoration.-Turbine bearing: repairing to eliminate turbine oil loss, replacement gaskets; interior cleaning and cleaning oil cooler turbine and oil transport pipes; check-up and inspection of the four-part turbine bearing; restoration of oil circulation pipes between the bath and the bearing cap (replacing the rubber hoses with pipe). -Turbine cover: turbine sealing system repair; labyrinth water exhaust system repair, replace the connections in the labyrinth water exhaust turbine cover; turbine cooling and lubrication repair, including filter review, with filter cell replacement.…”

A review on materials and processes for carbon dioxide separation and capture

“…Global warming dramatically modifies the earth’s climate and also adversely impacts the earth’s physical system (freshwater availability, sea level); chemical system (ocean potential of hydrogen (pH)); and a biological system (species adaptation). 3,4 The environmental impacts are climate change, resource depletion, change in ecological systems, long periods of drought, heavy floods, hurricanes, extreme weather conditions, alterations in precipitation patterns, interruption of the volcanic activity, melting of glaciers, snow and ice bodies, acidification, wildfires, eutrophication, eco-toxicity, human toxicity, ozone layer depletion, an increase in average sea levels, and an escalation in the number and strength of natural disasters. Therefore, these factors directly or indirectly threaten all living organisms, including humans and adversely affect the ecological systems and biodiversity.…”

The Role of City Forest: Study of Malang Urban Forest Contribution in Sequestrating Carbondioxide Emition

“…Yet, CO2 has been addressed as the main gas causing greenhouse effect which leads to the nowadays global warming phenomena (Khan, 2017). This, in turn, gives negative impacts to living organism and the environment in the same time such as health issue (Ioan & Amelitta, 2015), the sea level rise (Kaintura & Gusain, 2016), and global climate changes (Ansarizadeh et al, 2015;Nwankwoala, 2015). Due to its significant role in climate changes, the upsurge of CO 2 amount in the atmosphere has been an interesting topic in various scientific discussions and investigations (Ansarizadeh et al, 2015).…”