Essays about: "pollutant"

Showing result 1 - 5 of 129 essays containing the word pollutant.

1. 1. Lifetime CostEffectiveness of Constructed Wetland and Rain Garden Facilities in Relation to Expected  Treatment Performance

   University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

   Author : Abdullah Noorhussin Ali; [2023]
   Keywords : Stormwater; Total cost; StormTac; Cost-effectiveness;

   Abstract : The purpose of this thesis is to investigate the cost effectiveness of two different stormwater control measure (SCM) facilities, namely a constructed wetland in Boden and a rain garden in Gothenburg (both Sweden), in relation to treatment efficiency and contributing catchment area. The study approach involved collection of data, construction, and maintenance activities with their respective costs, for the two stormwater control measures from commercial and literature data. READ MORE

3. 2. Development of CAD Models for Large Silencer Platforms Using Design Automation

   University essay from Linköpings universitet/Produktrealisering

   Author : Mahim Kai; Balagangadar Thilakar Arumugam; [2023]
   Keywords : Design Automation; Silencer; CFD; Extraction;

   Abstract : Scania is known as a front-runner in the development of power trains for heavy vehicles, marine, and general industrial applications. As the regulations on emissions for combustion engine vehicles are getting tougher with increasing awareness on sustainable solutions and reducing environmental impact, the goal at Scania is to develop combustion engines to achieve low-pollutant emissions whilst achieving higher efficiency. READ MORE

4. 3. Sustainable utilization of waste and by-products from the meat industry

   University essay from SLU/Department of Molecular Sciences

   Author : Anton Glimåker; [2023]
   Keywords : Food waste; sustainability; protein; bioactive peptides; enzymes;

   Abstract : The purpose of this research was to summarise existing scientific literature on waste and by-products from the meat industry and suggest how the meat industry can use it in order to reduce environmental damage, increase food availability and contribute to the achievement of the Sustainable Development Goals. The report is a literature study were several databases were used. READ MORE

5. 4. Development of Elastic Mechanism for actuation of Valve

   University essay from KTH/Maskinkonstruktion

   Author : Nidhi Menon; [2023]
   Keywords : Compliant mechanism; Engine; HGR valve; Heat gas recirculation; Eftergivlig mekanism; HGR-ventil; läckage; varmgasåtercirkulationsventilen;

   Abstract : The HGR valve, or hot gas recirculation valve, is an essential component of modern internal combustion engines. Its main function is to reduce emissions of nitrous oxide (NOx), which is a harmful pollutant produced during combustion. READ MORE

6. 5. Temporal trends of Polybrominated diphenyl ethers (PBDE) and Hexabromocyclododecane (HBCDD) in Swedish Otter (Lutra lutra) and Grey Seals (Halichoerus grypus)

   University essay from Lunds universitet/Centrum för miljö- och klimatvetenskap (CEC)

   Author : Kajsa Frost; [2023]
   Keywords : Polybrominated diphenyl ether; PBDE; BDE; hexabromocyclododecane; HBCDD; Temporal trends; Flame retardants; Baltic grey seal; Halichoerus grypus; Eurasian otter; Lutra lutra; Intestinal ulcers; BDE-47; BDE-99; BDE-100; BDE-153; BDE-154; Earth and Environmental Sciences;

   Abstract : Polybrominated diphenyl ethers (PBDE) and hexabromocyclododecane (HBCDD) are brominated flame retardants. These compounds are lipophilic, persistent and have been shown to bioaccumulate. READ MORE