고흡수성 수지 처리에 따른 토양 수분 함량과 배수 특성 변화
Changes in Soil Water Content and Drainage Characteristics with Superabsorbent Polymers Amendment
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참고문헌
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초록
Superabsorbent Polymers (SAPs) are hydrophilic synthetic polymers which could absorb water by hundreds of their own weight. They are used formultiple purpose including hygienic goods, soil conditioners, and hospital supplies. It is necessary to investigate the standard of their use including theamendment rate for soil application in agricultural fields. It is also important to understand their effects on the soil water content and engineeringcharacteristics. The objective of this study is to find the water absorbing capacity and reusability of SAPs, and the characteristics of water release andeffect of them on soil water content and engineering characteristics. In the result, SAPs per unit weight (1 g) used for this research could absorb about 200g of water in max. The water absorbing capacity decreased after SAPs were used repeatedly. Released water of SAPs could provide the soils with about9 % of the soil water content. Soil water content increased with decreasing distance from the SAPs. The distance of release was spreaded out withincreasing water absorbed of SAPs. Finally, when a drainage and the capacity of soil water content were considered, it is recommended to amend theSAPs with soil by less than 0.25 %.
Abstract
Superabsorbent Polymers (SAPs) are hydrophilic synthetic polymers which could absorb water by hundreds of their own weight. They are used formultiple purpose including hygienic goods, soil conditioners, and hospital supplies. It is necessary to investigate the standard of their use including theamendment rate for soil application in agricultural fields. It is also important to understand their effects on the soil water content and engineeringcharacteristics. The objective of this study is to find the water absorbing capacity and reusability of SAPs, and the characteristics of water release andeffect of them on soil water content and engineering characteristics. In the result, SAPs per unit weight (1 g) used for this research could absorb about 200g of water in max. The water absorbing capacity decreased after SAPs were used repeatedly. Released water of SAPs could provide the soils with about9 % of the soil water content. Soil water content increased with decreasing distance from the SAPs. The distance of release was spreaded out withincreasing water absorbed of SAPs. Finally, when a drainage and the capacity of soil water content were considered, it is recommended to amend theSAPs with soil by less than 0.25 %.
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