Wenhou University

Xiuqing Hu

Jun Wang

Peng Wang

Junfeng Ni

Hongtao Fu

Yuanqiang Cai

Guohui Yuan

Ziyang Gao

Shihu Gao

Chuan Gu

Lin Guo

Xiaoxiao Zhu

Rila Anda

In the invention, a sludge treatment technology adopting flocculation-horizontal drain board vacuum preloading combining multi-layer sealed geotextile bag is disclosed, which comprises sealed geotextile bags and a geomembrane for sludge grouting and filling. The sealed geotextile bag and the geomembrane have two splicing modes, one is to place a layer of geomembrane inside and close to the inner side of the sealed geomembrane; the other is to wrap and seal the outside of the geotextile with geomembrane. A horizontal drainage system for vacuum drainage is set inside the sealed geotextile bag, with one end of the horizontal drain board being connected to a vacuum drainage pipe, and the drainage pipe passes through the sealed geotextile bag via a flange and is connected to the vacuum pump used for pumping the water in the sealed geotextile bag. Sludge includes engineering waste mud, river sludge and industrial sludge. A horizontal drainage system is added inside the sealed geotextile bag and combining with flocculant for sludge dewatering, and the sealed geotextile bag can be stacked in several layers to form a stacking effect on the lower structure through the self weight of the upper layer, thus making the drainage effect faster and the dewatering efficiency higher.

Sludge treatment system using a horizontal drain board with a multi-layer geotextile bag

Growing community of inventors

Wenzhou, China

Xiuqing Hu