Application of ash and municipal sewage sludge as macronutrient sources in sustainable plant biomass production
Application of ash and municipal sewage sludge as macronutrient sources in sustainable plant biomass production
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DOI：
10.1016/j.jenvman.2020.110450
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发表时间：
2020-06-15
影响因子：
8.7
通讯作者：
Babula, Jacek
中科院分区：
文献类型：
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作者：
Antonkiewicz, Jacek;Poplawska, Anna;Babula, Jacek
由于灰烬和污水污泥废物量不断增加，需要对这些废物作为营养物来源的利用进行理论和实践研究。然而，关于在田间条件下用灰渣-污水污泥混合物修正的土壤-植物系统中常量营养素转移的研究相对较少。该研究的目的是确定烟煤灰（AC）、生物质灰（AB）和城市污水污泥（MSS）对草豆混合物的数量和质量的影响。在用废物混合或单独施用的沙壤土上进行的为期 6 年的田间试验中，植物产量；植物对 N、P、K、Na、Mg 和 Ca 的吸收；植物生物量中大量营养素的含量和比例；并评价植物对常量营养素的回收率。与单独施用废物的情况相比，AB-MSS 处理提高了产量。植物生物质中的 N、P 和 Ca 含量以及灰渣处理下的 N 和 P 吸收量均在灰渣和污水污泥观察到的范围内。 AB-MSS 联合应用导致最高的 K 吸收。与 AC 处理相比，AC-MSS 处理增加了钾和镁的吸收。当 MSS 中添加 AC 或 AB 时，Ca 吸收相对于 MSS 处理有所增加。就化学成分而言，AB 处理下的植物生物质最适合生物燃料用途。 AC 或 AB 与 MSS 的共同应用产生了用于饲料目的的最佳 Ca:Mg 比例。大量元素的回收率按以下顺序降低：K、N、P、Mg、Na、Ca。研究结果支持灰烬和城市污水污泥等固体废物的共同应用，以提高生产力，支持大量营养素的循环利用，通过减少灰烬和污水污泥处理来提高可持续性，并减少对矿物肥料的依赖。
Owing to the growing volumes of ash and sewage sludge waste, there is a requirement for theoretical and practical research into the use of these wastes as a source of nutrients. However, there are relatively few studies on the transfer of macronutrients in soil-plant systems amended with ash-sewage sludge mixtures under field conditions. The aim of the study was to determine the effect of bituminous coal ash (AC), biomass ash (AB), and municipal sewage sludge (MSS) on the quantity and quality of a grass-legume mixture. During a 6 year field experiment on a sandy loam soil treated with the wastes, applied as mixtures or separately, the plant yield; N, P, K, Na, Mg, and Ca uptake by plants; macronutrient content and ratios in the plant biomass; and the recovery rate of macronutrients by plants were evaluated. The AB-MSS treatment increased the yield in comparison to that where the wastes were applied separately. The N, P, and Ca contents in the plant biomass and N and P uptake under ash-sludge treatments were in the range observed for the ash and sewage sludge. The AB-MSS co-application resulted in the highest K uptake. The AC-MSS treatment increased K and Mg uptake in relation to AC treatment. When AC or AB was added to the MSS, the Ca uptake increased relative to the MSS treatment. The plant biomass under the AB treatment was optimal for biofuel purposes in terms of the chemical composition. The co-application of AC or AB with MSS resulted in the optimum Ca:Mg ratio for fodder purposes. The recovery rate of the macroelements decreased in the following order: K, N, P, Mg, Na, and Ca. The results support the coapplication of solid wastes such as ash and municipal sewage sludge to improve productivity, support the recycling of macronutrients, improve sustainability through the reduction of ash and sewage sludge disposal, and reduce reliance on mineral fertilizer.