Recent Updates

Purple bacteria as solar cells? - http://bit.ly/bIX4iq

Toxic sludge to diesel - http://bit.ly/avU8xu

Each year, water utilities spend hundreds of millions of dollars dealing with sewer grease, a rancid mixture of fats, grease and oils that erode wastewater treatment pipes, clog the system and cause environmentally-hazardous back-ups.

in Oil and Cleantech

With a total installed capacity of 9.8 GW, Germany remains the largest solar energy market worldwide. 3.8 GW of this capacity were newly installed in Germany in 2009 alone.

%u201CTar Balls %u2013 In the end the bacteria can only degrade the lower molecular weight compounds from the crude oil. The tar balls cannot use bioremediation.%u201D

in Oil and Cleantech

"Oxygen %u2013 this is probably the limiting factor in the rate that the bacteria can eat the oil. The ocean and shore areas have limited ability to transfer oxygen into the water."

in Oil and Cleantech

"...with China%u2019s 15 percent biofuel target for 2020, the country had swung behind jatropha-based cultivation."

in Jatropha Biodiesel

China%u2019s agricultural residues alone exceed 700 million tones annually.

Boeing, Air China and PetroChina announced that they will partner on the testing of a jatropha-based BioSPK fuel for aviation. Al Bryant, a research VP for Boeing, said that he expected the jatropha-based fuel would begin becoming available between 2013 and 2015

in Jatropha Biodiesel

Isobutene, a key raw material needed for butyl rubber is usually produced using petrochem as feedstock. Alternatively, Gevo is developing a fermentation process to produce the organic compound isobutanol from the fermentable sugars in biomass, starting with corn

Typical costs of the steps of producing biogas in the gas grid are as follows: biogas production, 3.3%u20137.9 ct/kWh gas; biogas upgrading, 1.2%u20136.3 ct/kWh gas; net transport, 0%u20133.5 ct/kWh gas; CHP engine O&M, 0.9%u20131.0 ct/kWh gas - http://bit.ly%

in Combined Heat and Power

Farm Biogas in the Mainstream - a detailed article on how to integrate biogas into the mainstream gas supply - http://bit.ly/bXxi5K

The most important step of biogas upgrading is the removal of CO2 to raise the gas heating value. Here it is important not to lose too much CH4 with the removed CO2 and not to spend too much energy on CO2 removal - http://bit.ly/bXxi5K

in Global Warming and Climate Change

The process steps from biogas production to feed-in are: Drying; Desulphurisation; CO2 removal (adjusting heating value); Compression; Metering; Odourisation; and, Feed-In - http://bit.ly/bXxi5K

in Global Warming and Climate Change

"wind farms produce 1.2 watts per square meter. Solar Thermal and Photovoltaic methods capture 5 to 6 W per m2. Dividing the watts you need by those values gives the land area in square meters needed to produce the juice" - interesting!

in Solar PV

Nigeria's revenues from oil - Between 1965 and 2000, Nigeria received $350 billion in oil revenues. But the country is still very poor, corruption is rampant and education is low -

in Thin Film Solar Cells

Ocean energy comprises... - Ocean thermal, tidal power and wave energy -

in Thin Film Solar Cells

Did you know Saffron has lots of properties and benefits?

Some ways to use biomass - 1. Through direct firing and co-firing
2. Pyrolysis (biomass produces a mix of solids (char), liquids (oils and methanol), and gases (methane, CO & CO2)
3. Gasification - Gas from biomass; first volatile materials have to be removed via pyrolysis. The char left behind is gasified to create carbon and steam or O2 -

in Thin Film Solar Cells

Geothermal resources comprise - * Hydrothermal resources
* Hot dry rocks
* Geopressured brines
* Magma -

in Thin Film Solar Cells