Umeå Municipality has a total of 19 wastewater treatment plants. The largest handles waste water from households and various companies in the area. Every year, it receives about 13 million cubic metres of waste water, containing 3,000 tonnes of organic material and 80 tonnes of phosphorus. And every day it produces 23,000 kWh of biogas. Umeå’s largest treatment plant manages the waste water of 166,000 inhabitants (including industrial load) and can purify up to 8,100 cubic metres of waste water an hour.
Reduce GHG emissions
-
ObjectiveTechnology
-
SectorsObjective
Fertiliser and manure management in rice fields are important methane mitigation technologies. The fertiliser management mitigation option includes changes in: fertiliser types; fertiliser nutrient ratios; the rates and timing of applications; and use of nitrification inhibitors to reduce methane emissions by affecting methanogenesis in rice fields. Rice cultivation is responsible for 10% of GHG emissions from agriculture. In developing countries, the share of rice in GHG emissions from agriculture is even higher, e.g., it was 16% in 1994.
-
SectorsObjective
Straw ammoniation is a process by which low-value forage such as corn stalks, rice straw, wheat straw, and straw of other crops is ammoniated. Adding liquid ammonia, urea, or ammonium bicarbonate as ammonia sources result in the straw lignin being completely degraded, while the nutrients are enhanced. It is made more easily digestible by rumen microorganisms, which increases the digestibility of forage.
-
SectorsObjective
Mid-season drainage involves the removal of surface flood water from the rice crop for about seven days towards the end of tillering. The duration of the dry period must be long enough for rice plant to experience visible moisture stress. Rice cultivation is responsible for 10% of GHG emissions from agriculture. In developing countries, the share of rice in GHG emissions from agriculture is even higher, e.g., it was 16% in 1994.
-
SectorsObjective
Livestock are important sources of methane. The United States Environmental Protection Agency calculated that livestock, especially ruminants such as cattle and sheep, account for approximately one-third of global anthropogenic emissions of methane (US-EPA, 2006). The methane is produced primarily through the process of enteric fermentation and released through the process of eructation (Crutzen, 1995). In addition, N2O emissions are generated by livestock through secretion of nitrogen through the urine and faeces.
-
SectorsObjective
The agri-food industry comprises an integrated complex production chain which ranges from the primary agriculture to the mature food and beverage sector. It is considered as one of the largest sectors worldwide with significant contribution to the economic advancement of nations and major social impact.
-
ObjectiveTechnology
Membrane which permeates solvent (water) but does not permeate solute (salt). In desalination, pressure up to 10MPa is applied to seawater which enables water to pass through the revere osmosis membrane, while the salt is excluded.
Currently, two types of material are used: bridged aromatic polyamides, and cellulose acetate. Membranes must withstand high pressure and also be resistant to fouling.
-
Objective
Background: Algae are responsible for converting carbon dioxide into oxygen. However more than 20% of the world\\\'s oceans lack algae growth. The essential nutrient that is lacking in the algae-deficient surface waters is iron. However this iron must be (i) on the surface so that the algae can convert carbon dioxide to oxygen via photosynthesis and (ii) biologically available so that algae can use it. Technology Description: This technology describes the composition of and the method of production for water-buoyant particles that contain bioavailable iron.
-
Objective
Water fall pump based on hydrostatic pressure.
A hydram (hydraulic ram pumps) is an automatic pumping device which utilises a small fall of water to lift a fraction of the supply flow to a much greater height.
-
Objective
Rutgers researchers have developed a method for separating carbon dioxide from a mixture of gases by way of passing said mixture through a porous polymeric coordination compound.