Title :
Modeling of Nitrogen Conservation by the Addition of Mg and P Salts Mixtures for the Management of Urban Food Waste Treatments
Author :
Zhao, Wenjin ; Li, Dufeng ; Wang, Jiangling ; Li, Yu
Author_Institution :
Coll. of Environ. & Resources, Jilin Univ., Changchun, China
Abstract :
A nitrogen conservation model in the thermophilic composting process of simulated food waste, in which phosphate and MgSO4 mixtures (K3PO4 + MgSO4, K2HPO4 + MgSO4 and KH2PO4 + MgSO4 mixtures) were introduced for nitrogen (NH4 +-N) conservation, was developed for the management of composting combined with Contois function. The established model showed good agreement with experimental observation for NH4 + -N conservation. It appeared that K3PO4 + MgSO4 of experiment Run B produced less MgNH4PO4middot6H2O than K2HPO4 + MgSO4 of Run C or KH2PO4 + MgSO4 of Run D. The average fixation fraction of Runs B, C and D was respectively 30.77%, 69.38% and 73.13%.
Keywords :
food processing industry; magnesium compounds; nitrogen; potassium compounds; waste management; Contois function; K2HPO4; K3PO4; KH2PO4; MgSO4; nitrogen conservation; phosphate; salts mixtures; thermophilic composting process; urban food waste treatment; Conducting materials; Energy management; Environmental management; Inductors; Nitrogen; Raw materials; Resource management; Soil; Thermal management; Waste management;
Conference_Titel :
Management and Service Science, 2009. MASS '09. International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-4638-4
Electronic_ISBN :
978-1-4244-4639-1
DOI :
10.1109/ICMSS.2009.5305532
