| Literature DB >> 26897473 |
Liang Hei1, Charles C C Lee2, Hui Wang3, Xiao-Yan Lin4, Xiao-Hong Chen5, Qi-Tang Wu6.
Abstract
The 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 5.6MJ/kg (compared to the initial value of 1.9MJ/kg fresh sludge).Entities:
Keywords: Heavy metals; Municipal sewage sludge (MSS); Pennisetum hydridum; Phyto-treatment; Plant biomass
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Year: 2016 PMID： 26897473 DOI： 10.1016/j.biortech.2016.02.025
Source DB: PubMed Journal: Bioresour Technol ISSN： 0960-8524 Impact factor: 9.642