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Using a high biomass plant Pennisetum hydridum to phyto-treat fresh municipal sewage sludge

Lookup NU author(s): Dr Hui Wang


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© 2016 Elsevier LtdThe study was carried out to investigate the use of a high biomass plant, Pennisetum hydridum, to treat municipal sewage sludge (MSS). An experiment composed of plots with four treatments, soil, fresh sludge, soil-sludge mixture and phyto-treated sludge, was conducted. It showed that the plant could not survive directly in fresh MSS when cultivated from stem cuttings. The experiment transplanting the incubated cutting with nurse medium of P. hydridum in soil and fresh MSS, showed that the plants grew normally in fresh MSS. The pilot experiment of P. hydridum and Alocasia macrorrhiza showed that the total yield and nutrient amount of P. hydridum were 9.2 times and 3.6 times more than that of A. macrorrhiza. After plant treatment, MSS was dried, stabilized and suitable to be landfilled or incinerated, with a calorific value of about 5.6 MJ/kg (compared to the initial value of 1.9 MJ/kg fresh sludge).

Publication metadata

Author(s): Hei L, Lee CCC, Wang H, Lin X-Y, Chen X-H, Wu Q-T

Publication type: Article

Publication status: Published

Journal: Bioresource Technology

Year: 2016

Volume: 217

Pages: 252-256

Print publication date: 01/10/2016

Online publication date: 11/02/2016

Acceptance date: 06/02/2016

ISSN (print): 0960-8524

ISSN (electronic): 1873-2976

Publisher: Elsevier Ltd


DOI: 10.1016/j.biortech.2016.02.025


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