Environmental Engineering
Restructuring of Small-scale constructed wetland systems and treatability of individual household wastewater through natural process

S. Mokatip; K. Chunkao; W. Wararam; S. Bualert; O. Phewnil; T. Pattamapitoon; N. Semvimol; P. Maskulrath; P. Rollap; S. Thaipakdee

Articles in Press, Accepted Manuscript, Available Online from 08 February 2024

https://doi.org/10.22034/gjesm.2024.03.06*

Abstract
  BACKGROUND AND OBJECTIVES: Domestic wastewater pollution in Thailand presents challenges due to limited space and a high concentration of point source effluents. This phenomenon often leads to domestic wastewater exceeding the capacity of local treatment systems. This study aims to expand the knowledge ...  Read More

Environmental Engineering
Effects of landslide hazards on quality of stream water and sediments

O. Phewnil; T. Pattamapitoon; N. Semvimol; W. Wararam; K. Duangmal; A. Intaraksa; K. Chunkao; P. Maskulrath; S. Hanthayung; P. Wichittrakarn

Articles in Press, Accepted Manuscript, Available Online from 09 February 2024

https://doi.org/10.22034/gjesm.2024.03.09*

Abstract
  BACKGROUND AND OBJECTIVES: Landslide disasters in Thailand between 1970 and 2011 revealed a notable pattern: they primarily originated on mountain slopes, distinguished by a deeper soil profile. This soil profile comprised clay loam and sandy loam textures and was situated over aged geological formations ...  Read More

Environmental Engineering
Vertical bacterial variability in oxidation ponds in the tropical zone

C. Tudsanaton; T. Pattamapitoon; O. Phewnil; W. Wararam; K. Chunkao; P. Maskulrath; M. Srichomphu

Articles in Press, Accepted Manuscript, Available Online from 21 February 2024

https://doi.org/10.22034/gjesm.2024.03.12*

Abstract
  BACKGROUND AND OBJECTIVES: Community domestic wastewater contains organic substances that can be decomposed through natural processes. Treatment using oxidation pond systems is popular in tropical zones because these locations provide a climate suitable for the growth and organic decomposition activities ...  Read More

Environmental Science
Role of Cylindrospermopsis sp. in vertical nitrogen changes observed in tropical oxidation wastewater treatment ponds

M. Srichomphu; O. Phewnil; T. Pattamapitoon; Ratcha Chaichana; K. Chunkao; W. Wararam; N. Dampin; P. Maskulrath

Volume 10, Issue 1 , January 2024, , Pages 287-300

https://doi.org/10.22034/gjesm.2024.01.18

Abstract
  BACKGROUND AND OBJECTIVES: As a producer within the ecological food chain, phytoplankton provides the base energy and oxygen to the environment through photosynthesis and higher tropic levels. These benefits can be applied in five consecutive nature-by-nature oxidation ponds for the treatment of community ...  Read More

Environmental Science
Relationship between bacteria and nitrogen dynamics in wastewater treatment oxidation ponds

S. Saneha; T. Pattamapitoon; S. Bualert; O. Phewnil; W. Wararam; N. Semvimol; K. Chunkao; C. Tudsanaton; M. Srichomphu; U. Nachaiboon; O. Wongsrikaew; P. Wichittrakarn; C. Chanthasoon

Volume 9, Issue 4 , October 2023, , Pages 707-718

https://doi.org/10.22034/gjesm.2023.04.04

Abstract
  BACKGROUND AND OBJECTIVES: The bacterial community plays a crucial role in the nitrogen cycle. Oxidation ponds act as a natural treatment system for wastewater and are designed to promote the growth and activity of certain bacterial species that remove contaminants from the water. The nitrogen cycle ...  Read More