To provide a biogenesis suppression device capable of suppressing easily generation of a pest in sludge.SOLUTION: A biogenesis suppression device D1 includes a positive electrode EC, a negative electrode EA provided in a material containing an organic substance and a living thing, for generating electromotive force between itself and the positive electrode by adsorbing electrons generated from the organic substance, and an insulation layer F sandwiched between the positive electrode and the negative electrode, for mediating hydrogen ion generated from the organic substance.SELECTED DRAWING: Figure 1【課題】簡便に汚泥中の害虫の発生を抑制できる生物発生抑制装置を提供する。【解決手段】生物発生抑制装置Ｄ１は、正電極ＥＣと、有機物と生物とを含む物質内に備えられ、有機物が発生させる電子を吸着することにより正電極との間に起電力を生じさせる負電極ＥＡと、正電極と負電極とに挟まれ有機物が発生させる水素イオンを媒介する絶縁層Ｆと、を備える。【選択図】図１
