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首页> 外文期刊>日本作物学会紀事 >Chemical and physical properties of carbonized sewage sludge produced at various collection sites, seasons and carbonizing temperatures and their fertilizer effect on upland rice growth [Japanese]
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Chemical and physical properties of carbonized sewage sludge produced at various collection sites, seasons and carbonizing temperatures and their fertilizer effect on upland rice growth [Japanese]

机译：在不同收集地点产生的碳化污水污泥的化学和物理性质，季节和碳化温度及其对陆稻生长的肥料影响[日语]

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摘要

Carbonized sewage sludge has more advantages in terms of storage and transportation than dewatered sewage sludge, but no detailed studies have so far been conducted on the former. Dewatered sewage sludge was collected from Gifu City and Takasu Village in Gifu Prefecture. The dewatered sewage sludge was heated to several temperature ranges (300-700 degreesC) to produce the carbonized sewage sludge. Then, their chemical and physical properties were measured. Total nitrogen, EC, C/N ratio, etc. were found to vary with the site and time of collection, and the carbonizing temperature. For example, the total nitrogen content varied from 3% to 7%. Furthermore, the carbonized sewage sludge from Takasu Village was two times harder and 1.5 times denser than that from Gifu City. Thus. the carbonized sewage sludge from Gifu City was higher in porosity than that obtained from Takasu Village. Upland rice, grown in 1/5000a Wagner pot, was used as an indicator for evaluating the effect of the fertilizer. The rice seeds were sown in the pots with different amounts of 300 degreesC carbonized sewage sludge, 3 g and 6 g of total nitrogen per pot. Thirty days after sowing, top dry weight and SPAD (Soil & Plant Analyzer Development: measurement apparatus for chlorophyll content) value were higher in the sewage sludge from Gifu City compared with that from Takasu Village. The observed difference in fertilizer effect between the two sewage sludges on rice growth may be explained by their difference in chemical properties and porosity amount.
机译：碳化的污水污泥在储存和运输方面比脱水的污水污泥具有更多的优势，但是到目前为止，尚未对前者进行详细的研究。从岐阜市和岐阜县高须村收集了脱水的污泥。将脱水的污水污泥加热到几个温度范围（300-700摄氏度）以生产碳化的污水污泥。然后，测量它们的化学和物理性质。发现总氮，EC，C / N比等随收集地点和时间以及碳化温度而变化。例如，总氮含量在3％至7％之间变化。此外，来自高须村的碳化污水污泥比岐阜市的碳化污泥硬两倍，密度则高1.5倍。从而。岐阜市的碳化污泥的孔隙率比高须村的高。在1 / 5000a Wagner盆中生长的旱稻被用作评估肥料效果的指标。将水稻种子播种在装有不同量的300摄氏度碳化污水污泥，3克和6克总氮的盆中。播种后30天，岐阜市的污水污泥的最高干重和SPAD（土壤和植物分析仪的开发：叶绿素含量的测量设备）值高于高须村。两种污水污泥对水稻生长的肥料效应观察到的差异可以用它们的化学性质和孔隙率差异来解释。

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