Convert Waste CO2 and Chicken Feathers Into Fertiliser

Jun 5th, 2014 | By | Category: Adaptation Ideas

Talk about killing two birds with one stone. Every year we ditch millions of tonnes of chicken feathers, and pump climate-altering carbon dioxide into the air. But combine the two in the right way and you can make an otherwise-scarce fertiliser.

More than 5 million tonnes of chicken feathers are produced globally every year. Most get thrown into landfill where they can sit for decades without breaking down.

Changle Chen of the University of Science and Technology of China in Hefei, Anhui Province, and colleagues have found a use for them. Heat chicken feathers to 600 °C for 3 hours in C02 and two useful substances form.

One is ammonium bicarbonate, a fertiliser and food additive. But even better, warm this substance to 60 °C and it releases ammonia, an ingredient in urea, a superior fertiliser. Currently, 2 per cent of the world’s energy is consumed making ammonia, using the energy-intensive Haber process. Chen says that getting urea from chicken feathers instead could save some of this energy.

The second product is carbon micro-spheres, which Chen found can make a water-resistant coating. Alternatively, adding a catalyst turns them into carbon nanotubes, which have been used in everything from solar cells to biosensors.

“Sequestering carbon as ammonium bicarbonate or as urea is quite a smart idea,” says Walter Schmidt of the US Department of Agriculture in Beltsville, Maryland.

Chen’s idea for chicken feathers has some competition. They can also be turned into plastic, or hydrogen fuel cells. Another group uses their complex structure to make composite materials like printed circuit boards and fashion materials. Breeders have even created featherless chickens, but these may suffer more and have not proved popular.

Source>>

About

Started in year 2010, ‘Climate Himalaya’ initiative has been working on Mountains and Climate linked issues in the Himalayan region of South Asia. In the last five years this knowledge sharing portal has become one of the important references for the governments, research institutions, civil society groups and international agencies, those have work and interest in the Himalayas. The Climate Himalaya team innovates on knowledge sharing, capacity building and climatic adaptation aspects in its focus countries like Bhutan, India, Nepal and Pakistan. Climate Himalaya’s thematic areas of work are mountain ecosystem, water, forest and livelihood. Read>>

Himalayan Nations at Climate Change Conference-CoP21

Over 150 heads of state and government gathered in Paris at the UN climate change conference on Monday, 30 November, the largest group of leaders ever to attend a UN event in a single day. In speech after speech, they provided political leadership and support to reach an ambitious and effective climate change agreement by…

Read more…

Comments are closed.

seo packagespress release submissionsocial bookmarking services