Environmental biology and biotechnology
1. Kinetics of carbon dioxide, methane and hydrolysis in co-digestion of food and vegetable wastes

D. Pham Van; M.G. Hoang; S.T. Pham Phu; T. Fujiwara

Volume 4, Issue 4 , Autumn 2018, , Pages 401-412

http://dx.doi.org/10.22034/gjesm.2018.04.002

Abstract
  Kinetic models which can express the behaviors of hydrolysis and biogas generation more precisely than the conventional models were developed. The developed models were evaluated based on the experimental data of six batch reactors. Anaerobic digestion test was co-digestion of food and vegetable waste ...  Read More

Environmental biology and biotechnology
2. A new kinetic model for biogas production from co-digestion by batch mode

D. Pham Van; M.G. Hoang; S.T. Pham Phu; T. Fujiwara

Volume 4, Issue 3 , Summer 2018, , Pages 251-262

http://dx.doi.org/10.22034/GJESM.2018.03.001

Abstract
  Coming out from the growth kinetics, the Gompertz model has been developed and considered as the best one for simulating the biogas production from anaerobic digestion. However, the model has failed to describe the starting point of the process, and no-sense of lag phase constant has been pointed out. ...  Read More

Solid waste management
3. Analyzing solid waste management practices for the hotel industry

S.T. Pham Phu; M.G. Hoang; T. Fujiwara

Volume 4, Issue 1 , Winter 2018, , Pages 19-30

http://dx.doi.org/10.22034/gjesm.2018.04.01.003

Abstract
  The current study aims to analyze waste characteristics and management practices of the hotel industry in Hoi An, a tourism city in the center of Vietnam. Solid wastes from 120 hotels were sampled, the face-to-face interviews were conducted, and statistical methods were carried out to analyze the data. ...  Read More

Solid waste management
4. Predicting waste generation using Bayesian model averaging

M.G. Hoang; T. Fujiwara; S.T. Pham Phu; K.T. Nguyen Thi

Volume 3, Issue 4 , Autumn 2017, , Pages 385-402

http://dx.doi.org/10.22034/gjesm.2017.03.04.005

Abstract
  A prognosis model has been developed for solid waste generation from households in Hoi An City, a famous tourist city in Viet Nam. Waste sampling, followed by a questionnaire survey, was carried out to gather data. The Bayesian model average method was used to identify factors significantly associated ...  Read More