摘要:
A method to manufacture native soil flowable fill includes hydro excavating native soil to form a hole at a first excavation, and transferring the native soil from the first excavation to a mixing tank. The method also includes adding a pozzolan component, cement and water to the mixing tank, mixing the native soil in the mixing tank with the added pozzolan component, cement and water to form the native soil flowable fill, and transferring the native soil flowable fill back to the first excavation and into the hole.
摘要:
This invention relates to processes and systems for converting fresh food waste into nutrient rich hydrolysates and particulate compositions. The invention also relates to the hydrolysates and compositions useful, for example, as fertilizers, feedstock or other nutrient supplements.
摘要:
Provided is a method for preventing soil erosion in which a nonionic guar and/or a cationic guar is applied on or into the soil. A method for preventing water runoff of a soil in which a nonionic guar and/or a cationic guar is applied on or into the soil is also provided. A treated soil against the soil erosion susceptible to be obtained by the method for preventing soil erosion in which a nonionic guar and/or a cationic guar is applied on or into the soil is also provided.
摘要:
The invention relates to a process for the treatment of a rock formation or cavity, comprising the step of injecting, into said rock formation or cavity, a water solution of a water-soluble thermo-thickening polymer, said thermo- thickening polymer being able to form a gel at a threshold temperature (T g ), an inner temperature (T int ) of the rock formation or cavity being equal or superior to said threshold temperature (T g ), said process being characterized in that the thermo-thickening polymer is a cellulose chain, partially etherified with C 1 -C 6 alkyl or hydroxyalkyl groups, or a polyacrylamide-based copolymer including N-isopropylacrylamide and/or N-vinylpyrrolidone groups. Such a process is advantageous for water shutoff in gas- or oilfields, or to solve to water channelling problems between injection wells and production wells.
摘要:
The invention relates to a deep remediation injection system for in-situ remediation of contaminated soil and ground water capable of progressive penetration both vertically and horizontally in contaminated soil and ground water having a soil penetrating lance (10) for injecting air and oxygen and liquid with suspended biologicals into the contaminated soil as said soil penetrating lance (10) is inserted for penetration in the soil, an air compresser (11) for compressing air and delivering the air under pressure to the soil penetrating lance (10) on one end (26), a gas connector control (12, 14) for connecting the gas compressor (11) to the lance (10) and for controlling the compressed gas flow, and a liquid connector means (17, 19) for connecting the liquid pump (16) to the lance (10) and controlling the pressurized liquids.
摘要:
Vorrichtung (10) zum Austausch von Bodenmaterial, insbesondere neben Verkehrswegen und Bauwerken, gekennzeichnet durch eine Schalungsanordnung aus zwei parallen, im Abstand gehaltenen vertikalen Schalungswänden (12,14), die in den Boden durch Einrammen und/oder in eine zuvor ausgehobene Aufnahmegrube einbringbar ist; ein quer zwischen den Wänden (12,14) angeordnetes, plattenförmiges Widerlager (32), das mit den Schalungswänden (12,14) über Verstellzylinder (34,40) gekoppelt ist.
摘要:
A textile fabric employs a corrugated synthetic flat yam having a plurality of filaments arranged in side-by-side relationship and being integral with adjacent filaments. The tape is conugated tape woven or knitted with other yarns in a flat, substantially untwisted attitude. The tape is fabricated without fibrillation but controlled splitting may occur during subsequent fabric sewing or stitching operations. The fabric is particularly suited for use as geotextiles, woven intermediate bulk containers, woven explosive bags, and strapping (webbing).