Typically, the decanted water can be returned to waterways without additional treatment. Meanwhile, the sludge dewatering tube bottom will develop a filter cake quickly, so the water will decant mainly out of the sides and top of the tube gradually.Īfter a long-time cycle of repeated cycles of filling and dewatering, over 99% of solids are captured. Once the pumping begins, clear, effluent water will drain from the tube through the small openings in the permeable geotextile fabric. Simply place the pump hose into the port and secure it with a hose clamp, tie-wire or duct tape. Geotextile tube have a 'shirt-sleeve' style filling port. Prepare the feeding equipment in advance, like cutter head and suction dredge (for dredged materials), feed pump (for sludge materials),which are to be used in the following operations. After the geotextile tube delivered to the site, secure it on ground with external steel pipe or timber pile to fix the position of geotube. It is of utmost importance to place the geotextile tube on a level ground and before deploying, any barriers ,such as stone ,sundry, have to be removed as to prevent them from influencing the deploying effect. As such, general guidelines can be described, but each project requires consultation with a geotextile tube expert to identify the project's singular attributes and to design the sludge dewatering process accordingly. Non-Woven Fabrics are high in resistance to UV rays, rot, and degradation.HOW TO USE GEOTEXTILE TUBE Every geotextile tube project is unique. Made in several different weights and filtration levels, these geotextiles are an ideal solution for separation, drainage, sediment control, cushioning, and various construction and road repair applications. Non-Woven Geotextile Fabrics have a felt-like consistency engineered for strength and water flow. They are made of synthetics and most often used in filter or separation applications. Rather than weaving together fabric on a loom, non-woven geotextiles are manufactured by bonding materials together, either through chemical or heat, needle punching or other methods. Non-Woven Geotextiles are most manufactured with what's called a 'needle-punched' process, using barbed needles to create a felt-like permeable geotextile fabric. Woven Geotextile Fabrics perform at a high level and save time and money. While they are permeable, they are not typically used in applications requiring filtration as the main function. They allow drainage while adding an extra layer of support between road subgrades and aggregates, increasing stability, and extending the life of the road surface. They reduce maintenance costs and improve the performance of paved and unpaved surfaces. These ground stabilization geotextiles have high tensile strength at low elongations. Commonly known as ground stabilization fabric, wovens are useful in separating fewer desirable sub soils from gravel or paved surfaces. They are made from narrow strands of polypropylene tape that are woven together during manufacturing, producing a sturdy fabric, but one with less permeability than non-wovens. Woven Geotextiles Fabrics are woven with industrial looms in a consistently applied pattern for strength and drainage. As the names indicate, the basic difference between the two lies not in how the geotextiles function, but rather in how they're manufactured. Woven verses Non-Woven? Each geotextile type has its benefits and uses, depending on project requirements for strength, durability, and drainage. Geotextiles are used in the construction of roads, drains, harbour works, breakwaters, and for land reclamation and many other civil engineering purposes. Different geotextile materials are specified for various characteristics, such as separation, filtration, drainage, reinforcement, sealing, and protection.

The geotextiles can be made of woven fabrics, non-woven fabrics, or knitted fabrics. There are several types of Geotextile Fabrics, which consist of a permeable synthetic material usually made from polymers such as polyester or polypropylene.

Breakwaters woven geotextile