A composition for use in a method or a system to stabilise a material such as geological strata or a rock mass in which initially retarded gypsum is accelerated at the time of introduction or injection into the rock mass. The retarding of the gypsum may be accomplished by a retarder such as a hydration inhibitor mixed with the gypsum and the acceleration may be accomplished by an accelerant added to mixture of the gypsum and retarder. Upon introduction of the accelerant, water is also added to initially reduce the viscosity of the composition so as to be less than the initially retarded gypsum so as to make it more easily pumpable before becoming set within the geological strata or a rock mass.

A method of soil treatment that allows for the creation of or installation of a highly reflective surface for use in conjunction with bifacial solar panels to more efficiently generate clean energy.

A method of soil treatment that allows for the creation of or installation of a highly reflective surface for use in conjunction with bifacial solar panels to more efficiently generate clean energy.

Spray dried homogeneous mixtures of a high molecular mass flocculating agent, a base polymer dispersion, and a protective colloid are useful for homogenously stabilizing mixtures such as dust, sand, and/or soil and produce a stabilized composition of high strength.

Spray dried homogeneous mixtures of a high molecular mass flocculating agent, a base polymer dispersion, and a protective colloid are useful for homogenously stabilizing mixtures such as dust, sand, and/or soil and produce a stabilized composition of high strength.

A method for amending contaminated soil includes tailoring a surfactant-based soil amendment to the targeted contaminant. If the contaminant is a hydrocarbon, the soil is amended with a composition of a surfactant (about 5% by weight), cellulose (about 45% by weight), an oxidizer (about 40% by weight), and a nitrogen fertilizer (about 10% by weight). If the contaminant is a chloride, the soil is amended with a composition of a surfactant (about 15% by weight), gypsum (about 75% by weight), and a nitrogen fertilizer (about 10% by weight).

A method for amending contaminated soil includes tailoring a surfactant-based soil amendment to the targeted contaminant. If the contaminant is a hydrocarbon, the soil is amended with a composition of a surfactant (about 5% by weight), cellulose (about 45% by weight), an oxidizer (about 40% by weight), and a nitrogen fertilizer (about 10% by weight). If the contaminant is a chloride, the soil is amended with a composition of a surfactant (about 15% by weight), gypsum (about 75% by weight), and a nitrogen fertilizer (about 10% by weight).

This application discloses a comprehensive treatment method for salinized soil in semi-arid region, comprises: stripping and collecting the topsoil; spreading sandy soil and/or loess soil as a imported soil layer; spreading an anti-seepage layer, a salt barrier layer and a membrane layer successively on the imported soil layer; mixing clay into the topsoil to obtain mixed soil; blending saline-alkali land conditioner with the mixed soil to obtain planted soil; spreading the planted soil on the membrane layer to obtain a planting layer. The method combines physical, hydraulic, chemical and biological remediation methods to comprehensively manage saline-alkali soil in semi-arid areas. It consumes less water resources, has a shorter treatment cycle, shows quick results, is conducive to plant growth, and can effectively inhibit the return of salt.

This application discloses a comprehensive treatment method for salinized soil in semi-arid region, comprises: stripping and collecting the topsoil; spreading sandy soil and/or loess soil as a imported soil layer; spreading an anti-seepage layer, a salt barrier layer and a membrane layer successively on the imported soil layer; mixing clay into the topsoil to obtain mixed soil; blending saline-alkali land conditioner with the mixed soil to obtain planted soil; spreading the planted soil on the membrane layer to obtain a planting layer. The method combines physical, hydraulic, chemical and biological remediation methods to comprehensively manage saline-alkali soil in semi-arid areas. It consumes less water resources, has a shorter treatment cycle, shows quick results, is conducive to plant growth, and can effectively inhibit the return of salt.