Essays about: "sludge pretreatment"

Showing result 1 - 5 of 14 essays containing the words sludge pretreatment.

1. 1. Biogas Potential in the North of Sweden : Inventory and Techno-Economic Assessment of Substrates for an Increased Biogas Production in Norrbotten

   University essay from Lunds universitet/Kemiteknik (CI)

   Author : Alma Fahlén Hammar; [2023]
   Keywords : Biogas; anaerobic digestion; AD; Norrland; bioenergy; fossil-free; chemical engineering; Chemistry; Technology and Engineering;

   Abstract : Great investments are planned in the north of Sweden the coming years, not the least in the county of Norrbotten where the projects collectively are referred to as the green transition due to the focus on fossil-free techniques. But to be able to secure a sustainable energy supply and reach the goal set by the member states of the European Union of a carbon dioxide neutral union in 2050 the production of alternative energy sources needs to intensify. READ MORE

3. 2. Optimization of a two-step anaerobic treatment of wastewater from the Pulp and Paper Industry

   University essay from KTH/Industriell bioteknologi

   Author : Sara Bard; [2022]
   Keywords : Wastewater treatment; biogas; methane; pulp and paper mill wastewater; wood raw material; anaerobic treatment; sulphate reduction; UAPB reactor; Vattenrening; biogas; metan; processvatten från pappers- och massaindustrin; träråvara; anaerob rening; sulfatreduktion; UAPB reaktor;

   Abstract : Under de senaste 30 åren så har antalet massa- och pappersbruk minskat medan den totala produktionen av massa och papper har ökat. En högre produktion per bruk tillsammans med en hårdare miljölagstiftning, sätter ett högre tryck på vattenreningen på varje bruk. READ MORE

4. 3. Analysis and modelling of ozone pre-treatment of sludge for biogas production

   University essay from KTH/Kemiteknik

   Author : Gokul Prasad; [2022]
   Keywords : Wastewater treatment; anaerobic digestion; sludge pre-treatment; ozonation; methane; Avloppsvattenrening; anaerob rötning; slamförbehandling; ozonering; metan;

   Abstract : Ozonförbehandling av avloppsvattenslam har diskuterats i litteraturen som en potentiell metod för att öka biogasproduktionen och minska slamvolymen. I detta arbete utvecklades en numerisk modell för att simulera effekten av ozonförbehandling på biogasproduktion genom anaerobrötning. Modellen bygger på en befintlig modell från litteraturen. READ MORE

5. 4. Anaerobic Co-digestion of steam pretreated wheat straw and sewage sludge

   University essay from Lunds universitet/Bioteknik (master); Lunds universitet/Bioteknik (CI)

   Author : Virginia Tosi; [2021]
   Keywords : Anaerobic co-digestion; wheat straw pretreatment; nutrients availability; OLR; VFA acumulation; Biotechnology; Technology and Engineering;

   Abstract : Anaerobic digestion (AD) of wastes and residues is a widely applied and explored process. However, when the process is not optimized, inadequate concentrations of nutrients and inhibitory compounds are common and can lead to low maximum organic loading rates and increased risk of process problems, low organic dry solids degradation rate and reduced methane yields. READ MORE

6. 5. Pretreatment Methods for Manganese Containing Anode Sludge

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

   Author : Johan Stenman; [2017]
   Keywords : Manganese; Zinc; Lead; Strontium; Reduction; Anode; Sludge; Slime; Metallurgy; Pyrometallurgy; Chamber; Rotary; Furnace; Agglomeration;

   Abstract : This master thesis work examines whether it is possible to separate lead from an electrolytic sludge rich in manganese using pyrometallurgical treatment, and also attempts to determine the optimum process parameters for such a treatment. It also includes a theoretical study of the possible applications for lead and manganese, as well as thermodynamic calculations predicting the behaviour of the material at increasing temperatures. READ MORE