Abstract:
Described herein are multitier geomembrane products (100), and methods for making same, for usage in landfills, mineral and metal mines, etc., that may or may not be located in seismically active geographies wherein the geomembrane (100) includes enhanced surface features that combine different geometries into a final textured geomembrane product. The multitier geomembrane product includes a geomembrane material having at least one of a high density polyethylene (HOPE), a medium density polyethylene (MDPE), and a linear low density polyethylene (LLDPE); and polypropylene (PP), the geomembrane material further including an upper surface from which a plurality of friction spikes protrude.
Abstract:
An artificial geological barrier, compositions for use in artificial geological barriers, methods of making said artificial geological barriers and composition, and uses of said artificial geological barriers and compositions.
Abstract:
A geosynthetic sensor that incorporates an arrangement of a first layer of lengths of electrically conductive geosynthetic and a second layer of lengths of electrically conductive geosynthetic where each said length undergoes a change in electrical resistance or capacitance when subject to changes in any one or more of: pressure; strain; water content; or temperature.
Abstract:
Composite particles contain a natural stone or aggregate core and a coating of two or more sorbent layers collectively containing at least two distinct kinds of sorbent materials effective for sorbing two distinct contaminants. One or both sorbent layers may be mixed with a water-absorbent, swellable clay that, upon contact with water, causes spalling or disintegration of the coating layer to release the sorptive material into a body of water such as a pond, ditch, stream, or riverbed. Additional swellable or protective layers may also be present. The composite particles are deployed into a pond, ditch, river, or streambed where the core of natural stone remains in the riverbed. The sorptive materials of the two different sorbent layers sorb and fix a wide range of contaminants, including both the heavy and light-weight hydrocarbons, from the water, and settle as a fine sediment. The sediment with sorbed contaminants is then removed by means such as hydraulic collectors or dredging.
Abstract:
一种垃圾填埋场防渗衬垫击穿时间的简易确定方法,包括以下步骤:(a)对垃圾填埋场渗沥液样品进行检测,确定其典型污染物的起始浓度C 0 ,并监测垃圾填埋场渗沥液水头h;(b)根据填埋场当地地下水功能定位确定污染物的致害或致污浓度C A ;(c)通过调查确定防渗衬垫相关参数与污染物运移相关参数;防渗衬垫相关参数包括防渗衬垫厚度z、衬垫渗透系数k以及衬垫材料孔隙率n,污染物运移相关参数包括污染物在防渗衬垫中的有效扩散系数D a * 、机械弥散系数D m 以及防渗衬垫对该污染物的吸附阻滞因子R d ;(d)根据公式计算防渗衬垫的击穿时间t。
Abstract:
An electrically conductive geotextile incorporating graphene and a method of using conductive properties in same to detect anomalies in said textile.
Abstract:
A membrane 10 is a geomembrane 10, which takes the form of a non-conductive sheet 11. A conductive layer 13 is printed on to the sheet 11, in this instance in a geometric pattern of a rectangular grid. The lines of the grid 13 are conductive and connected to each other, with non-conductive gaps 15 disposed between the grid lines. Accordingly, a conductive linear network is formed, which has the requisite conductivity for leak detection.
Abstract:
본 발명은 호기성호열미생물을 이용한 가축사체 처리시설 및 매몰처리방법에 관한 것으로, 가축사체 처리시 나노기포산소수를 사용함으로써 사체분해 초기에 외부 공기공급이 요구되지 않으므로, 가축사체에 잔류하는 다양한 동물성병원균, 특히 조류인플루엔자, 구제역을 발병시키는 바이러스의 공기중 유출을 막을 수 있으며, 가축 사체로부터 유래되는 침출수와 악취발생 억제는 물론 경제적이고 신속한 분해가 가능하여 관리기간의 감축 및 토지의 이용율을 극대화할 수 있는 가축사체 처리시설 및 매몰처리방법에 관한 것이다.
Abstract:
Procedimiento de instalación de una barrera física multicapa sobre un suelo (1) con residuos (2) contaminantes, para interrumpir flujos hídricos verticales en dicho suelo (1), que supone una optimización de eficiencia y coste. Comprende disponer primera (4), segunda (6), tercera (8), cuarta (10) y quinta (12) capas de áridos (4, 6, 8, 10, 12) consecutivas, de granulometrías alternadas respectivamente, de abajo a arriba, de tipo grava, arenas, grava, arenas y grava, así como intercalar una capa de un material separador (3, 5, 7, 9, 11), inmediatamente antes de cada capa de áridos (4, 6, 8, 10, 12), para evitar mezcla de materiales entre el suelo (1) y primera capa de áridos (4) y entre cada dos capas de áridos (4, 6, 8, 10, 12) consecutivas. Las capas de áridos segunda (6) y cuarta (10) son compactadas para evitar filtración, preferentemente de acuerdo con su valor máximo de compactación Proctor.