Essays about: "Hazardous chemicals"

Showing result 1 - 5 of 31 essays containing the words Hazardous chemicals.

1. 1. Possibility to reuse and recycle wood waste and CDWW

   University essay from Högskolan i Borås/Akademin för textil, teknik och ekonomi

   Author : Julia Christensen; [2023]
   Keywords : wood; wood waste; construction and demolition wood waste; recycling; reusage;

   Abstract : This essay will address if and how it is possible to reuse and recycle wood waste and CDWW (construction and demolition wood waste). The background will have a short introduction and then be divided into 3 sections. The first section addresses similarities and differences between linear vs. circular economy. READ MORE

3. 2. The Potential of Dissolved Air Flotation for PFAS Reduction in Norrvatten's Future Waterworks

   University essay from KTH/Kemiteknik

   Author : Madeleine Vikström; [2023]
   Keywords : PFAS4; drinking water production; dissolved air flotation; granular activated carbon filter; sludge management; PFAS4; dricksvattenproduktion; flotation; granulärt aktivt kolfilter; slamhantering;

   Abstract : Norrvatten är en av Sveriges största dricksvattenproducenter. Med ett ökande behov av en större produktionskapacitet och nya regleringar, planerar dem att förbättra sin reningsprocess. En aspekt som kräver omfattande undersökning är val av reningsmetod för att nå den nya gränsen från Livsmedelsverket för fyra PFAS kemikalier. READ MORE

4. 3. Chemical analysis of polycyclic aromatic compounds in plastic materials used in indoor environments

   University essay from Örebro universitet/Institutionen för naturvetenskap och teknik

   Author : Lania Yara; [2023]
   Keywords : polycyclic aromatic hydrocarbons; additives; plastics; artificial leather;

   Abstract : Human bodies are in constant interaction with materials containing known and unknown chemicals of hazardous behavior. One group of chemicals are polycyclic aromatic compounds (PACs) which can be present in both indoor and outdoor materials, commonly in plastics. READ MORE

5. 4. HAZARD ASSESSMENT OF 1 932 INDUSTRIAL CHEMICALS REGISTERED WITHIN REACH

   University essay from Göteborgs universitet / Institutionen för biologi och miljövetenskap

   Author : Andreas Hellohf; [2022-08-08]
   Keywords : chemical risk assessment; industrial chemicals;

   Abstract : This report was conducted to examine if industrial chemicals present a hazard to the aquatic environment in Europe. Industrial chemicals produced within or imported to the European Union are regulated according to the REACH Regulation and most of them must be registered in the ECHA database. READ MORE

6. 5. Analysis of polyfunctional thiols in beer : Developing a novel method of extraction and analysis using GC-FID

   University essay from Lunds universitet/Livsmedelsteknik och nutrition (master)

   Author : Arvid Lindmark; [2022]
   Keywords : Beer; Hops; Thiols; 3MHA; 4MMP; Food Technology; Agriculture and Food Sciences;

   Abstract : In this project, attempts were made to identify and quantify two polyfunctional thiols – 4-mercapto-4-methyl-pentanone and 3-mercaptohexyl acetate – and three monoterpene alcohols – linalool, geraniol, and β-citronellol – in beer samples. In order to avoid the use of hazardous compounds such as dichloromethane and hydroxymercuriobenzoate, common in traditional methods, two novel techniques were tested: a pure liquid-liquid extraction of the beer samples with cyclohexane, and a liquid-liquid extraction with cyclohexane followed by solid phase extraction on silver ion columns. READ MORE