Method for solidifying sewage sludge using fallen leaves

The present invention discloses a solidifying method for sewage sludge using fallen leaves as an auxiliary solidifying agent of sewage sludge, which can not only improve physical properties of solidified sewage sludge but also stimulate anaerobic mineralization of the buried solidified sewage sludge...

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Main Authors KIM, YOUNG ROK, SON, BONG WON, JUNG, JAE GWAN, CHOI, YOUNG SOO, LEE, HYUN JU, RYU, CHANG HYUN, KWON, YOUNG HONG, LEE, EUN WOO, OK, JONG SEON
Format Patent
LanguageEnglish
Korean
Published 20.04.2018
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Summary:The present invention discloses a solidifying method for sewage sludge using fallen leaves as an auxiliary solidifying agent of sewage sludge, which can not only improve physical properties of solidified sewage sludge but also stimulate anaerobic mineralization of the buried solidified sewage sludge. The solidifying method for sewage sludge comprises: a step of mixing 100 parts by weight of sewage sludge, 10-25 parts by weight of a solidifying agent, and 1-15 parts by weight of fallen leaves as an auxiliary solidifying agent; and a step of curing the mixed sewage sludge, the solidifying agent, and the auxiliary solidifying agent. Here, the fallen leaves should be used desirably by being cut within a size of 5 cm (height) x 5 cm (width). In addition, the fallen leaves can stimulate decomposition of the solidified sewage sludge in order to stabilize the landfill upon completion of burying of the solidified sewage sludge, and can stimulate generation of methane (CH_4) gas. 낙엽을 하수슬러지의 고화 보조제로 이용하여, 하수슬러지 고화물의 물성을 개선할 뿐만 아니라, 매립된 하수슬러지 고화물의 혐기성 분해를 촉진할 수 있는 하수슬러지의 고화 방법이 개시된다. 상기 하수슬러지 고화 방법은 하수슬러지 100 중량부, 고화제 10 내지 25 중량부 및 고화 보조제로서 낙엽 1 내지 15 중량부를 혼합하는 단계; 및 상기 혼합된 하수슬러지와 고화제 및 고화 보조제를 양생하는 단계를 포함한다. 여기서, 상기 낙엽은 가로 x 세로 5 x 5 cm 이하의 크기로 분쇄되어 사용되는 것이 바람직하다. 또한, 상기 낙엽은 하수슬러지 고화물의 매립 작업 후, 하수슬러지 고화물의 분해를 촉진하여, 매립장을 안정화시키고, 메탄(CH) 가스의 생성을 촉진하는 역할을 한다.
Bibliography:Application Number: KR20170085538