| Modifying of some chemical properties of mushroom compost waste by electrocoagulation treatment |
| Paper ID : 1343-NICAME1402 |
| Authors: |
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Seyed Safa Hosseini *1, Mohammad Hossein Kianmehr2, Ali Fadavi3, akbar arabhosseini4, Zahra Nemati5, Seyed Mohammad Movasagh6 1Biosystem Mechanics, Aburihan , University of Tehran, Pakdasht, Tehran 2Agricultural Technology, Agriculture, Tehran, Pakdasht, Iran 3Department of Food Technology, Aburaihan College, University of Tehran, Tehran, Iran 4Department of Agrotechnology, College of Aburaihan, University of Tehran, Tehran, Iran 5Agricultural technology, Aburihan campus, Biosystem mechanical engineering, Tehran, Iran 6Biosystem Mechanics, Aburihan, University of Tehran, Pakdasht, Tehran, Iran |
| Abstract: |
| The production of mushroom compost waste will increase due to the increase in mushroom cultivation units. It is predicted that in the case of lack of proper management, the annual amount of waste in this sector in Iran will reach to more than 500 thousand tons by 2025 and may cause major problems. It is necessary to process and improve the characteristics of this type of waste in order to use it as a culture medium. The aim of this study is to model, optimize and improve the physical and chemical properties of mushroom compost waste to return it to the recycle by applying the Ohmic heating process and Ozonation process to improve the physical and chemical properties. Response surface method (RSM) in the form of central composite design (CCD) was used to investigate the effective factors in the two stages of Ohmic heating and Ozonation processes. In the process of applying Ohmic heating, the effects of the three factors of electrode type (iron and steel), process time (5, 10 and 15 minutes) and the distance between two electrodes (5.5, 7 and 8.5 cm) on EC and pH responses were checked out. The best result for the iron electrode was obtained for the Ohmic heating time of 15 minutes and the distance of 5.5 cm. In optimal conditions, a significant decrease in EC (88%) and an increase in pH (from 8 to 8.6) were observed compared to the sample without pre-treatment. |
| Keywords: |
| Electrode, mushroom compost waste, electrocoagulation process |
| Status : Paper Accepted (Poster Presentation) |
