ORIGINAL RESEARCH PAPER Environmental risk assessment and management
1. Flood hazard zones using 2d hydrodynamic modeling and remote sensing approaches

M.B.T. Alivio; G.R. Puno; B.A.M. Talisay

Volume 5, Issue 1 , Winter 2019, Pages 1-16

http://dx.doi.org/10.22034/gjesm.2019.01.01

Abstract
  Increasing frequency and severity of flooding demands identification of flood hazard zones in Kalilangan, Bukidnon in response to the echoing need of better disaster preparedness via enhancing the understanding and awareness of the public on flood characteristics by integrating the use of two-dimensional ...  Read More

ORIGINAL RESEARCH PAPER Energy and environment
2. Biogas generation from floral waste using different techniques

M.B. Kulkarni; P.M. Ghanegaonkar

Volume 5, Issue 1 , Winter 2019, Pages 17-30

http://dx.doi.org/10.22034/gjesm.2019.01.02

Abstract
  There is a great need to implement low-cost and user-friendly methods for further propagation of biogas technology in India. Environment unfriendly disposal of floral waste causes serious environmental pollution. Literature shows a limited research work regarding the anaerobic ...  Read More

ORIGINAL RESEARCH PAPER Environmental science
3. Economic and ecological perspectives of farmers on rice insect pest management

M.T.N. Cabasan; J.A.G. Tabora; N. Cabatac; C.M. Jumao-as; J.O. Soberano; J.V. Turba; N.H.A. Dagamac; E. Barlaan

Volume 5, Issue 1 , Winter 2019, Pages 31-42

http://dx.doi.org/10.22034/gjesm.2019.01.03

Abstract
  Understanding farmers’ perception is important in the development of sustainable and cost-effective integrated pest management strategies. Hence, farmers’ perception on rice insect pests and pesticide use was evaluated by selected 112 farmers composed of 77% males and 23% females, over the ...  Read More

ORIGINAL RESEARCH PAPER Environmental engineering
4. Photodegradation process for the removal of acid orange 10 using titanium dioxide and bismuth vanadate from aqueous solution

B. Rahimi; A. Ebrahimi; N. Mansouri; N. Hosseini

Volume 5, Issue 1 , Winter 2019, Pages 43-60

http://dx.doi.org/10.22034/gjesm.2019.01.04

Abstract
  In this study, the photocatalytic degradation of azo-dye acid orange 10 was investigated using titanium dioxide catalyst suspension, irradiation with ultraviolet-C lamp and bismuth vanadate under visible light of light-emitting diode lamp. Response surface methodology was successfully employed to optimize ...  Read More

ORIGINAL RESEARCH PAPER Environmental science
5. A novel microbial consortium from sheep compost for decolorization and degradation of Congo red

Sh.F. Abd El-Kader; G.A. El-Chaghaby; G.M. Khalafalla; R.I. Refae; H.M. Elshishtawy

Volume 5, Issue 1 , Winter 2019, Pages 61-70

http://dx.doi.org/10.22034/gjesm.2019.01.05

Abstract
  Congo red is a synthetic azo-dye dye with many industrial applications. The effluents containing azo dyes are causing several environmental hazards and thus should be treated prior to their discharge. The present work investigates the possible use of a novel microbial consortium from sheep compost for ...  Read More

ORIGINAL RESEARCH PAPER Hydrology and water resources
6. Hydrologic responses of watershed assessment to land cover and climate change using soil and water assessment tool model

R.C.C. Puno; G.R. Puno; B.A.M. Talisay

Volume 5, Issue 1 , Winter 2019, Pages 71-82

http://dx.doi.org/10.22034/gjesm.2019.01.06

Abstract
  Predicting the impact of land cover and climate change on hydrologic responses using modeling tools are essential in understanding the movement and pattern of hydrologic processes within the watershed. The paper provided potential implications of land conversions and climate change scenarios on the hydrologic ...  Read More

ORIGINAL RESEARCH PAPER Solid waste management
7. Composition of plastic waste discarded by households and its management approaches

B. Gwada; G. Ogendi; S.M. Makindi; S. Trott

Volume 5, Issue 1 , Winter 2019, Pages 83-94

http://dx.doi.org/10.22034/gjesm.2019.01.07

Abstract
  Among the emerging environmental issues within Sub-Saharan Africa is the haphazard disposal of plastic waste, some of which end up downstream in the marine environment leading to negative effects. Notably there have been cases of humpback whales getting entangled in ‘ghost’ fishing nets, ...  Read More

ORIGINAL RESEARCH PAPER Environmental risk assessment and management
8. Effect of digital elevation model’s resolution in producing flood hazard maps

J.L. Ogania; G.R. Puno; M.B.T. Alivio; J.M.G. Taylaran

Volume 5, Issue 1 , Winter 2019, Pages 95-106

http://dx.doi.org/10.22034/gjesm.2019.01.08

Abstract
  Flooding is one of the most devastating natural disasters occurring annually in the Philippines. A call for a solution for this malady is very challenging as well as crucial to be addressed. Mapping flood hazard is an effective tool in determining the extent and depth of floods associated with hazard ...  Read More

ORIGINAL RESEARCH PAPER Marine and coastal environmental pollution and management
9. Abstraction, desalination and recharge method to control seawater intrusion into unconfined coastal aquifers

S. Sadjad Mehdizadeh; S. Badaruddin; S. Khatibi

Volume 5, Issue 1 , Winter 2019, Pages 107-118

http://dx.doi.org/10.22034/gjesm.2019.01.09

Abstract
  In this study, abstraction, desalination and recharge method and SEAWAT numerical model are used to investigate seawater intrusion repulsion in a hypothetical two-dimensional coastal aquifer to understand the relation of seawater intrusion with abstraction, desalination and recharge parameters (i.e. ...  Read More

REVIEW PAPER Wastewater collection and treatment processes
10. Expanded granular sludge bed bioreactor in wastewater treatment

A. Cruz-Salomón; E. Ríos-Valdovinos; F. Pola-Albores; S. Lagunas-Rivera; R. Meza-Gordillo; V.M. Ruíz-Valdiviezo; K.C. Cruz-Salomón

Volume 5, Issue 1 , Winter 2019, Pages 119-138

http://dx.doi.org/10.22034/gjesm.2019.01.10

Abstract
  The expanded granular sludge bed bioreactor appears today as a cheap, robust and more popular technology because it operates using a fluidized bed, which allows increasing in organic load and in cell retention times, generating higher treatment efficiencies (up to 95 %) and renewable energy (i.e., biogas, ...  Read More