Changes in physico-chemical parameters during forced-aeration static-pile co-composting of cattle manure with calcium cyanamide

Abstract

The goal of this research was to determine the effect of CaCN₂ addition into manure mixed with sawdust on the composting process under forced-aeration static condition, especially on nitrogen (N). The changes in the physical and chemical parameters over the entire composting period were evaluated. The profile of temperature, pH, and -N was improved in the piles mixed with 2%, 3% and 4% CaCN₂ (the test piles). The -N met the limit value accepted for mature compost. Finally, the additive contents of not less than 2% but not more than 3% in CaCN₂ were recommended for this system based upon a comprehensive evaluation of the measured parameters.

Keywords:

• nitrogen
• composting
• manure
• waste management technologies

Additional information

Notes on contributors

Huasai Simujide

Huasai SIMUJIDE. Works in College of Animal Science, Inner Mongolia Agricultural University. Number of publications: 16; participated in two conferences in China. Research interests include waste management technologies, air pollution, landscape management, veterinary microbiology.

Chen Aorigele

Chen AORIGELE. Works in College of Animal Science, Inner Mongolia Agricultural University. Number of publications: 54; participated in 22 conferences in China. He has been awarded the following awards: Inner Mongolia Autonomous Region Science and Technology Progress Award twice, Inner Mongolia Autonomous Region Youth Science and Technology Award once. He has been the Executive Director of Straw Resources Utilization Branch of Chinese Association of Agricultural Science Societies; the Executive Director of Inner Mongolia Dairy Association; the Vice General Secretary of Inner Mongolia Association of Animal Science; the Deputy Director of Inner Mongolia Breeding Professional Committee; the member of Japanese Society of Animal Science, Japanese Society of Grassland Science, Japanese Society of Application of Animal Behavior. Research interests include waste management technologies, air pollution, landscape management, environmental management.

Chun-Jie Wang

Chun-Jie WANG. Works in College of Veterinary Medicine, Inner Mongolia Agricultural University. Number of publications: 59; has participated in 18 conferences in China. He has been awarded the following awards: Inner Mongolia Autonomous Region “321 talents project” the second level people, Inner Mongolia Autonomous Region Department of Education “111 talents project” the third level people. He has been the Council Member of Chinese Association of Animal Physiology, Northern China Association of Veterinary Pathology; the member of Chinese Association of Veterinary Pathology; the premium member of Chinese Association of Animal Science and Veterinary Medicine. Research interests include waste management technologies, landscape management, environmental management, medical microbiology.

Jun-E Yu

Jun-E YU. Works in Ulanqab Vocational College. Number of publications: 3; has participated in one conference in China. Research interests include waste management technologies, air pollution, landscape management.

Bai Manda

Bai MANDA. Works in College of Animal Science, Inner Mongolia Agricultural University. Number of publications: 5; has participated in two conferences in China. Research interests include waste management technologies, air pollution, landscape management.

Ma Lina

Ma LINA. Works in College of Life Sciences, Inner Mongolia Agricultural University. Number of publications: 5; has participated in two conferences in China. Research interests include waste management technologies, air pollution, landscape management, food and fermentation engineering.