Biogas Production from Cattle Manure Together with Greenhouse Harvesting Wastes and Modelling of Anaerobic Co-Digestion

Abstract

The aim of this study is to determine the optimum organic loading and waste mixing ratios to obtain the highest biogas yield for the anaerobic digestion of tomato and pepper harvesting wastes together with cattle manure. This study was carried out at 5 and 10% of organic loadings. Tomato and pepper harvesting wastes were each mixed with cattle manure in the ratios of 15%, 30%, 45%, 60%, 75% and 90%. As a result, the highest biogas yield was obtained in the mixture of 60% tomato harvesting wastes with 40% of cattle manure at 5% of organic loading. Simulation ability of each kinetic model for experimental data was determined. Results of the highest biogas yields of 5% and 10% organic loading samples were modelled by using different kinetic models (Gompertz, Cone, and First Order) and model parameters were calculated.

Keywords

• Anaerobic co-digestion,Pepper and tomato harvesting wastes,Kinetic modelling,Cattle manure

Büyükbaş Hayvan Atıkları ile Sera Hasat Atıklarından Biyogaz Üretimi ve Birlikte Anaerobik Parçalanma Prosesinin Modellenmesi

Öz

Bu çalışmanın amacı kök, gövde, yaprak ve meyve içeren domates ve biber bitkisi hasat atıklarının sığır gübresi ile birlikte anaerobik parçalanmasında en yüksek biyogaz veriminin elde edileceği en uygun organik yükleme ve atık karışım oranlarının saptanmasıdır. Çalışma %5 ve %10 olmak üzere 2 farklı organik yükleme miktarında gerçekleştirilmiştir. Sığır gübresi içerisine domates ve biber hasat atıkları ayrı ayrı olmak üzere %15, %30, %45, %60, %75 ve %90 oranlarında karıştırılmıştır. Çalışma sonucunda en yüksek biyogaz verimi %5 organik yükleme miktarında %40 sığır gübresi ile %60 domates hasat atıkları karışım oranında elde edilmiştir. %5 ve %10 organik yükleme miktarları için en yüksek biyogaz veriminin elde edildiği karışım oranlarına ait sonuçlar farklı kinetik modellerle (Gompertz, Cone, ve Birinci derece model) modellenmiş, kinetik modellerin deneysel verileri temsil etme yeteneği tespit edilmiş ve model parametreleri hesaplanmıştır.

Anahtar Kelimeler

• Anaerobik ko-fermantasyon,Biber ve domates hasat atıkları,Kinetik modelleme,Sığır gübresi

References

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