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Changing of soil stability in irrigation with reclaimed water

This study sets out to investigate the potential damage of treated latex wastewater in irrigation, among which is the possible degradation of soil structure and stability. Study field is located in Rubber Research Institute of Vietnam, Ben Cat, Binh Duong.The rubber field was irrigated by treated latex wastewater and stopped from September 2012 to April 2015 (16 months after irrigating). | Đặng Vũ Xuân Huyên và Đtg Tạp chí KHOA HỌC & CÔNG NGHỆ 139(09): 109 - 114 CHANGING OF SOIL STABILITY IN IRRIGATION WITH RECLAIMED WATER Dang Vu Xuan Huyen*, Trinh Thi Bich Huyen, Lai Duy Phuong, Dang Vu Bich Hanh, Nguyen Phuoc Dan Hochiminh city University of Technology SUMMARY This study sets out to investigate the potential damage of treated latex wastewater in irrigation, among which is the possible degradation of soil structure and stability. Study field is located in Rubber Research Institute of Vietnam, Ben Cat, Binh Duong.The rubber field was irrigated by treated latex wastewater and stopped from September 2012 to April 2015 (16 months after irrigating). Soil was sampled on surface to characterize physical, chemical properties of soil. Probable risks for adverse changes in the structure and stability of soil were characterized: pH, EC (electrical conductivity) of water extracts and exchangeable cations (Ca, Mg, K, and Na) and Sodium Adsorption Ratio (SAR).Scanning Electron Microscopy (SEM) was used to analyzed chemical properties in the soil. The study emphasizes the need to carefully examine irrigation water quality and suggests that shrinkage analysis could be used to monitor the physical changes of soil properties. Keywords: treated wastewater, soil stability, soil salinity, Sodium Adsorption Ratio (SAR), Scanning Electron Microscopy (SEM). INTRODUCTION* The differential nature of treated waste water to the original water source, along with the need to use the treated wastewater (TWW) for irrigation increased, may appear environmental issues, including the decline in the structure and the stability of the land.These risks can occur for adverse changes in the structure and the stability of the soil and hydraulic properties of soil irrigated with TWW so may stem from the higher reaction from dissolved organic matter, suspended solids, sodium absorption ratio (SAR), and salinity in TWW than water source [1]. During 1996 and 2010, results of .