摘要
本研究旨在探讨大生物量植物—皇竹草(Pennisetum Hydridum)在处理消耗污泥焚烧烟气吸收废液方面的潜力和适宜条件。首先,对皇竹草的栽培基质进行了筛选,以有机废液为水分和营养源,对比了土壤、已处理过的污泥和新鲜污泥作为栽培基质的优劣。研究了不同大小或高度皇竹草对废液处理的效果和合适的工艺参数。结果表明,高COD和TN的污泥焚烧烟气吸收废液没有对皇竹草生长产生明显不良影响,使用已处理过的污泥作为栽培基质可获得最高株高和最大生物量的皇竹草,并能消耗最多的有机废液。皇竹草起始株高与废液消耗量呈极显著的正相关关系,即随着植株株高的增加,废液消耗也增大,150 cm高的皇竹草经测算夏季每亩每年可处理消耗废液量高达1638 m^(3),同时可收获皇竹草生物质。
In order to to determine the potential and suitable conditions for the treatment and using-up of adsorption wastewater generated from sewage sludge incineration(AWGSI)by a high biomass plant Pennisetum hydridum,the organic and nutritional wastewater as the only water and nutrient source for the cultivation mediums,the comparison tests of planting P.hydridum were conducted among three types of substrates:soil,treated sludge and fresh sludge.Then the wastewater treatment effect of P.hydridum with different size or height as well as reasonable process parameters was studied.Results showed that AWGSI with high COD(Chemical Oxigen Demand)and total N had no obvious adverse effect on the growth of P.hydridum.The highest plant height and maximum biomass of P.hydridum could occur when the treated sludge was taken as the cultivation medium,and the highest amount of AWGSI could be consumed.There was a very significant linear positive correlation between the initial plant height of P.hydridum and the consumption of AWGSI,that is to say that the consumption of AWGSI increased with the increasing plant height.It was estimated that 24570 m^(3) of AWGSI per year will be treated and consumed by P.hydridum with a height of 150 cm per ha in summer,together with a harvest of P.hydridum biomass.
作者
唐宇龙
邱永洪
陈灿明
王丹阳
蓝志聪
吴启堂
TANG Yulong;QIU Yonghong;CHEN Canming;WANG Danyang;LAN Zhicong;WU Qitang(College of Natural Resources and Environment,Guangdong Provincial Key Laboratory of Agricultural&Rural Pollution Abatement and Environmental Safety,South China Agricultural University,Guangzhou 510642,China)
出处
《环境工程学报》
北大核心
2025年第1期160-166,共7页
Chinese Journal of Environmental Engineering
基金
广东省特支计划本土创新团队项目(2019BT02L218)。
关键词
皇竹草
污泥焚烧
栽培基质
有机废液
株高
生物量
Pennisetum hydridum
sludge incineration
cultivation medium
organic wastewater
plant height
biomass
