Ceviz Kabuğunun Karbonizasyonu ile Elde Edilen Katı Ürününün Toprak Düzenleyicisi Olarak Kullanılması

Year 2019, Volume: 6, 106 - 116, 30.09.2019

Elif Yaman , Esin Apaydın-varol , Hüseyin Tevfik Gültaş , Nurgül Özbay

https://doi.org/10.35193/bseufbd.571391

Cited By: 3

Abstract

Biyokütlenin oksijensiz ortamda bozundurulması ile
elde edilen piroliz katı ürünü (biyoçar), toprak kalitesini iyileştirici
özelliğinden dolayı toprak düzenleyicisi olarak kullanılabilmektedir. Yapılan
bu çalışmada, ceviz kabuğundan 500 °C'de biyoçar elde edilmiş ve biyoçar
(g):toprak (kg) oranı 5, 10 ve 20 olmak üzere üç farklı oranda biyoçar-toprak
karışımları hazırlanmıştır. Elde edilen karışımlar 3, 8 ve 12 haftalık
sürelerde inkübasyona bırakılmış ve inkübasyon sonunda toprak örneklerinin
karakterizasyonu için pH, elektriksel iletkenlik, katyon değiştirme kapasitesi
(KDK) ve su tutma kapasitesi (STK) ölçümleri yapılmıştır. Taramalı Elektron
Mikroskobu-Enerji-Dağılımlı X-Işını (SEM-EDX) tekniği ile inorganik madde
miktarı ve Kjeldahl metodu ile azot miktarı belirlenmiştir. Yüksek karbon
içeriğine ve gözenekli yapıya sahip olan biyoçar, toprağın elektriksel
iletkenlik ve pH değerlerini önemli ölçüde azaltırken, azot miktarını ise
artırmıştır. Toprak için su tutma kapasitesi yaklaşık 0.55 g/g olarak
belirlenirken, biyoçar-toprak karışımında bu değerin 0.60 g/g’a yükseldiği
görülmektedir. Biyoçarın bitki büyüme üzerindeki etkisi incelendiğinde, en
verimli sonucun biyoçar (g):toprak (kg) oranının 5 olduğu örnekten elde
edildiği belirlenmiştir.

Keywords

Biyokütle, biyoçar, ceviz kabuğu, toprak, pH, pH, pH, pH

Using of Solid Product Obtained by Carbonization of Walnut Shell as Soil Amendment

Abstract

Biomass can be used as a soil conditioner due to its soil quality
enhancing properties. In this study, walnut shell biochar was produced at 500
°C and mixed with three different doses of soil, including biochar (g):toprak
(kg) ratio are 5, 10 and 20. The obtained soil-biochar mixtures were incubated
for 3, 8 and 12 weeks. Electrical conductivity, pH measurements, cation
exchange capacity (CEC) and water holding capacity (WHC) were carried out to
characterize soil samples at the end of incubation periods. The amount of
nitrogen was determined by Kjeldahl method and Scanning Electron
Microscope-Energy-Dispersive X-Ray (SEM-EDX) was used to specify the amount of
inorganic substance in soil. The biochar with high carbon content and porous
structure significantly reduced the pH and electrical conductivity values of
the soil and increased the nitrogen amount. While the water holding capacity
for the soil is determined as approximately 0.55 g/g, it is seen that this
value increases to 0.60 g/g in the biochar-soil mixture. When the effect of
biochar on plant growth was examined, it was determined that the most efficient
result was obtained from 5 g of biochar/1 kg soil mixture.

Keywords

Biomass, Biochar, Walnut Shell, Soil, pH, pH, pH, pH

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