Researching New Hybrid Treatment Technology for Wastewater Treatment

by Behlül Kula | Nov 29, 2021

Within the scope of the project, it is planned to increase the efficiency of the membrane system by combining the MBR system and the IFAS system into a single system. In this direction, by using the film fixation feature offered by IFAS, filtration with low AKM in the membrane tank will increase the fluxes.

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Project Title: Investigation of Innovative Hybrid Membrane Bioreactor (If-Mbr) Treatment Technology for Pollution Load Reduction in Wastewaters
Project Type: İstanbul Teknik Üniversitesi
Project Coordinator: Assist. Prof. Dr. Türker Türken

Abstract: In recent years, due to the increase in the amount of water to be treated, research on new treatment processes that less space and are very efficient in terms of economics and effluent quality has intensified. Membrane technologies are at the forefront of these technologies. Membrane Bioreactor (MBR) systems, which can be used instead of conventional treatment systems in domestic wastewater treatment plants, have created a widespread field of study because they are both economical and easy to operate. Membrane bioreactor systems (MBR) are combined treatment systems that are widely used in the treatment of domestic and industrial wastewater, biological decomposition with an activated sludge system, and solid-liquid separation with membrane filtration. The MBR process is mainly based on the physical separation of treated water and activated sludge with a membrane. Due to the high separation efficiencies, it provides, it is a process that consists of incorporating a membrane module that provides physical separation into the process, either submerged or externally, instead of the secondary settling tank in conventional domestic wastewater treatment plants. According to research that conducted by Ministry of Environment and Forest, the wastewater discharge originating from the Marmara Basin is around 5 million m3. With rapid population growth and industrialization, it is predicted that this waste discharge will increase further in the coming years. Due to location problems in Istanbul, waste is discharged into the Marmara Sea only after pre-treatment. In addition, industries such as textiles, where waste production is high, constitute a point source of pollution in the Marmara Sea. The IFAS treatment process combines traditional activated sludge and biofilm technologies in a single reactor. It offers a performance increase of approximately 40% without the need to add new aeration tanks to existing systems. IFAS adds high surface area to the activated sludge pool. This media/surface area provides additional biomass and increases the growth rate of microorganisms. This increases the sludge age and ensures high performance of the treatment efficiency (AQWISE, 2010). Within the scope of the project, it is planned to increase the efficiency of the membrane system by combining the MBR system and the IFAS system into a single system. In this direction, by using the film fixation feature offered by IFAS, filtration with low AKM in the membrane tank will increase the fluxes. In addition, due to the high adhesion of microorganisms, much more wastewater can be treated hydraulically with high efficiency in less areas. In this situation, many advantages will be provided in the revision of classical wastewater treatment plants to advanced biological wastewater treatment plants, especially in places with space problems, to treat much more wastewater in the same volume as capacity increases. As explained in the declaration submitted by the Ministry of Environment and Forestry within the scope of Combating Mucilage, the project can also reveal scientific results for the design and research of the vision of using membrane systems to provide wastewater recovery in the modernization of wastewater treatment plants.

İTÜ Faculty of Civil Engineering

It can be accepted that the history of ITU Civil Engineering Faculty was commenced in 1727 by the establishment of Humbarahane during the era of Damat İbrahim Paşa. However, this attempt was to no avail due to the martyrization of the studwents of this school by the Janissaries.

In 1734, during the grand viziership of Topal Osman Paşa, classes related to Civil Engineering was being taught in Hendesehane, which was founded in Üsküdar. Similarly, this school was also closed after three years due to the opposition of the Janissaries. The reasons of the tragedy that occured in Battle of Chesma, 1770 were inadequacy of the ships and the ignorance of the Ottoman Navy.

Although the Atlantic Map (1513) and the Map of Europe and the Mediterranean Sea (1523) by Piri Reis were the leading pieces of the era, Ottoman viziers were so ignorant that they claimed it was impossible for the Russian Baltic Fleet to reach the Mediterranean Sea assuming that there were no sea connection. With the proposal from Gazi Hasan Paşa and Baron de Tott, Mühendishane-i Bahri-i Humayun was established during the time of Sultan Mustafa III, aiming to train naval construction engineers. Since Ottoman Empire did not have any engineering schools at the time, military engineering classes were taught by French engineers beginning from 1784. French lecturers had to return to their country in 1788 with the increasing suppression from Austria and Russia, which were unwilling for the development and thriving of Ottoman Empire. In 1759, during the Grand Viziership of Koca Ragıp Paşa, Humbarahane was reopened in Karaağaç, Haliç (Golden Horn) and continued to teach even though it was incompetent. In 1792, Lağımcı Ocağı and Humbaracı Ocağı (Guild of Sappers) were established.