基于污水污泥的堆肥中有机物的特性

IF 1.3 Q4 ENGINEERING, ENVIRONMENTAL

Journal of Ecological Engineering Pub Date : 2024-07-01 DOI:10.12911/22998993/187964

Magdalena Myszura-Dymek

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引用次数: 0

摘要

研究的目的是评估污水污泥堆肥产品中所含有机物的质量及其与粉煤灰和矿棉共同堆肥的情况。研究对象是使用城市污水处理厂的稳定污泥（SS_1C）和添加了 20% （SSF_2C）和 30% （SSF_3C）粉煤灰以及 5% （SSW_4C）和 10% （SSW_5C）矿棉的污泥生产的堆肥。对堆肥 180 天后的堆肥样本进行了选定的物理化学特性、腐殖化合物组分以及腐殖化程度和速率的测定。经评估的堆肥反应接近成熟堆肥的最佳反应。与 SS_1C 相比，污水污泥与矿棉和灰分的共堆肥提高了堆肥的吸附能力。由于可用磷和镁的含量不同，所讨论的堆肥形成了 SS_1C>SSF_2C 和 SSF_3C>SSW_4C 和 SSW_5C 系列。然而，就可用钾含量而言，SSF_2C 和 SSF_3C 的可用钾含量分别为SSF_2C和SSF_3C>SSW_4C，SSW_5C>SS_1C。在 SS_1C 堆肥中，有机碳（TOC）含量略高，但添加粉煤灰和矿棉对成熟堆肥中的 TOC 含量没有显著的统计学影响。粉煤灰和矿棉的添加明显增加了总氮的含量。由于腐殖化指数的不同，堆肥形成了以下系列：SSW_4C > SSW_5C > SSF_2C > SS_1C > SSF_3C。SS_1C 中的 C-KH/C-KF 比率值是优质土壤的典型值，而其余堆肥的 C-KH/C-KF 值则略低。所评估堆肥的腐殖化程度以腐殖化程度较低的有机物质为特征，添加矿棉的堆肥中该指标值最高。有机物质量指标的评估结果表明，添加矿棉和 100% 污泥的污水污泥堆肥的有机物质量最高。

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Properties of Organic Matter in Composts Based on Sewage Sludge

The aim of the research was to assess the quality of organic matter contained in sewage sludge composting products and their co-composting with fly ash and mineral wool. The object of the research were composts produced using stabilized sewage sludge from the municipal sewage treatment plant (SS_1C) and sewage sludge with the addition of 20% (SSF_2C) and 30% (SSF_3C) of fly ash and 5% (SSW_4C) and 10% (SSW_5C) of mineral wool. Selected physicochemical properties, fractional composition of humic compounds, and the degree and rate of humification were determined in compost samples taken after 180 days of composting. The reaction of the evalu - ated composts was close to optimal for mature composts. Co-composting of sewage sludge with mineral wool and ash increased the sorption capacity in composts compared to SS_1C. Due to the content of available P and Mg, the discussed composts formed the SS_1C>SSF_2C and SSF_3C>SSW_4C and SSW_5C series. However, in terms of available K content: SSF_2C and SSF_3C>SSW_4C and SSW_5C>SS_1C. In the SS_1C compost the organic carbon (TOC) content was slightly higher, but no statistically significant effect of the addition of fly ash and mineral wool on the TOC content in mature composts was confirmed. The addition of ash and mineral wool significantly increased the total nitrogen content. Due to the humification index, the composts formed the series: SSW_4C > SSW_5C > SSF_2C > SS_1C > SSF_3C. The values of the C-KH/C-KF ratio in SS_1C were typical for good quality soils, while in the remaining composts the C-KH/C-KF values were slightly lower. The degree of humification of the assessed composts was characterized by poorly humified organic materials, with the highest values of this indicator found in composts with the addition of mineral wool. The assessed quality indicators of organic matter indicate that the organic matter of composts from sewage sludge with the addition of mineral wool and 100% sludge was of the highest quality.

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来源期刊

Journal of Ecological Engineering ENGINEERING, ENVIRONMENTAL-

CiteScore

2.60

自引率

15.40%

发文量

379

审稿时长

8 weeks

期刊介绍： - Industrial and municipal waste management - Pro-ecological technologies and products - Energy-saving technologies - Environmental landscaping - Environmental monitoring - Climate change in the environment - Sustainable development - Processing and usage of mineral resources - Recovery of valuable materials and fuels - Surface water and groundwater management - Water and wastewater treatment - Smog and air pollution prevention - Protection and reclamation of soils - Reclamation and revitalization of degraded areas - Heavy metals in the environment - Renewable energy technologies - Environmental protection of rural areas - Restoration and protection of urban environment - Prevention of noise in the environment - Environmental life-cycle assessment (LCA) - Simulations and computer modeling for the environment