Deniz Yosunu Katkılı Zeolit-Bentonit Karışımlarının Sıcaklık Varlığında Hidrolik İletkenlik Davranışının Ampirik İlişkilerle Belirlenmesi

Öz

Katı atık depolama alanlarında çevre ve mühendislik parametreleri açısından sıcaklık faktörü de önem arz etmektedir. Bu alanlarda atıkların bozunması sonucunda sıcaklık değerinin yükseldiği bilinmektedir ve sıcaklık değişimleri zeminlerin mühendislik özelliklerini etkilemektedir. Zemin cinsine bağlı olarak da özellikler değişim göstermektedir ve zeminlerin mühendislik özelliklerinin iyileştirilmesinde kullanılabilecek katkı malzemeleri ön plana çıkmaktadır. Burada en önemli kriterlerden biri kullanılacak katkının sürdürülebilir ve çevreyle dost olmasıdır. Terminolojik adıyla Zostera marina yani kurutulmuş deniz yosunu, bir su bitkisi olup sürdürülebilir, maliyeti düşük ve ısı yalıtımında kullanılan bir materyaldir. Bu çalışmada kurutulmuş yosun katkısı, zeolit-bentonit karışımlarına eklenerek oda sıcaklığı ve 40° C sıcaklık altında sıkışma parametreleri belirlenmiştir. Konsolidasyon deneyleri sonucunda elde edilen hacimsel sıkışma katsayısı (mv) ve konsolidasyon katsayısı (cv) parametreleri ve ampirik ilişkiler yardımı ile yosun katkılı karışımların hidrolik iletkenlik değerleri belirlenmiştir. Katı atık depolama alanlarında sıcaklık varlığında tampon malzeme olarak kullanılma potansiyeli değerlendirilmiştir. Deney sonuçları yosun katkısının, zeolit-bentonit karışımlarının hidrolik iletkenlik değerlerini oda sıcaklığı ve 40 °C sıcaklık altında azalttığını göstermiştir.

Anahtar Kelimeler

• Bentonit
• Hidrolik iletkenlik
• Deniz yosunu
• Sıcaklık
• Zeolit

Determination of the Hydraulic Conductivity Behavior of Seaweed Added Zeolite-Bentonite Mixtures in the Presence of Temperature with Empirical Relationships

Öz

The temperature factor is of great importance in areas that directly affect the environment and engineering parameters of liners, such as solid waste storage areas. It is known that the temperature value increases as a result of the degradation of waste in these areas, and temperature changes affect the engineering properties of the soils. Properties vary depending on the soil type, and additives that can be used to improve the engineering properties of soils come to the fore. One of the most important criteria is that the additive to be used is sustainable and environmentally friendly. Zostera marina, with its terminological name, or dried seaweed an aquatic plant and is a sustainable, low-cost material used in thermal insulation. In this study, dried seaweed additive was added to zeolite-bentonite mixtures and compression parameters were determined under room temperature and 40°C. Hydraulic conductivity values of seaweed-added mixtures were determined with the help of volumetric compression coefficient (mv) and consolidation coefficient (cv) parameters and empirical relationships obtained as a result of consolidation tests. Its potential to be used as a buffer material in the presence of temperature in solid waste storage areas evaluated. The tests results showed that the seaweed additive decreased the hydraulic conductivity values of zeolite-bentonite mixtures at room temperature and under 40°C.

Anahtar Kelimeler

• Bentonite
• Hydraulic conductivity
• Seaweed
• Temperature
• Zeolite

Kaynakça

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