The invention belongs to the technical field of
slurry shield waste
slurry treatment, and discloses a shield waste
slurry gel breaker as well as a use method and application thereof. The shield waste mud gel breaker is prepared from the following components in parts by
mass: 0.008 to 0.03 part of aluminum
sulfate, 0.004 to 0.01 part of
ferric trichloride, 0.01 to 0.03 part of industrial defoaming agent, 0.0009 to 0.004 part of pH (Potential of
Hydrogen)
regulator and 0.004 to 0.014 part of
gypsum powder. When the shield waste mud gel breaker is used, the materials are prepared according to 1 part by
mass of mud. The aluminum
sulfate, the
ferric trichloride, the defoaming agent, the PH
regulator and the
gypsum powder are compounded according to a certain proportion and added into the shield waste slurry with the
water mass fraction of 80% to be evenly mixed and dispersed, the
dehydration rate of the treated slurry reaches 35% or above within 5 h,
clear liquid separated out of the upper layer meets the national
environmental protection standard, reutilization or standard
discharge is achieved, and the method is suitable for industrial production. Therefore, scientific and environment-friendly treatment on the shield waste slurry is realized.