The article deals with the problem of purification of melt water generated by the urbanized territories. It is proposed to use wood residue from sawing of plantings to obtain relatively inexpensive sorption material for the contamination extraction from surface wastewater. The aim of this work is to study the sorption properties of the material obtained by sawing of plantings. Experimental modeling of sorption of dissolved petroleum products and copper ions from an aqueous solution of milled branches of black poplar is carried out under static conditions. The sorption process is studied in accordance with a three-factor design experiment. Laboratory modeling determines the optimum parameters of water purification and the degree of mutual influence of contaminants on the sorption process. Natural material obtained from the poplar components shows the sorption properties in relation to oil products and copper ions in the water environment. The filters made of milled branches and used in local treatment plants will allow solving the problems of municipal services, namely utilization of wood residue from sawing of plantings and effective melt water purification due to the low-cost filtering materials.
Abstract.The article considers the applying of CDIO approach elements in Industrial University of Tyumen to bachelor students of "Urban Civil Engineering and Municipal Facilities" and "Water Supply and Sewage" departments, direction "Civil Engineering". The authors analyzed in detail the methods of lessons conducting by CDIO Standards "Integrated Curriculum", "Integrated Learning Experiences" and "Active Learning". Business game scenario "The operating company chooses a companyproducer booster pumps" is given in the article. During the game, students had the opportunity to test their professional skills in the real-based simulated situation. Roles of the game participants are described in detail. The methodology for the classes to implement the interdisciplinary project "Design of the sewer system of urban area" is explained in detail. Initial data for the interdisciplinary project were drawn from the teachers' own practical experience.
Приведены результаты исследований и сезонных наблюдений за качеством поверхностных сточных вод, образующихся на территории современного крупного города. Показана зависимость качества поверхностного стока от сезона года, вида городской застройки. Отмечено влияние противогололедных реагентов на качество талых вод. Предложен новый подход к разработке технологической схемы очистки поверхностного стока. На основе полученных данных предложена технологическая схема локальной очистной станции для поверхностных сточных вод, работающей в автоматическом режиме. Данное решение учитывает сезонные изменения качества поверхностных сточных вод на урбанизированных территориях. The results of studies and seasonal observations of the surface wastewater quality that generated in the territory of a modern large city are presented. The dependence of the surface runoff quality on the year season and the kind of urban development is shown. The eff ect of anti-ice reagents on the meltwater quality is noted. The article suggests a new approach to the making of a technological scheme for surface wastewater treatment. Based on the obtained data, a technological block-scheme of a local Wastewater Treatment Plant (WWTP) intending for surface wastewater treatment and operating in an automatic mode is proposed. The proposed technological solution takes into account seasonal changes in the surface wastewater quality in urbanized areas.
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