Study of the Possibility of Using Microwave Radiation for the Treatment of Liquid Municipal Waste

Abstract

Статья посвящена вопросу изучения влияния сверхвысокочастотного электромагнитного излучения (СВЧ ЭМИ) на свойства осадков сточных вод. Показана возможность использования СВЧ-излучения для их обработки. Приведены результаты экспериментов, подтверждающие положительное влияние исследуемого технологического процесса на степень и скорость уплотнения смеси осадков и активного ила, улучшение их влагоотдачи, увеличение выхода примесей тяжелых металлов в декантированную воду, снижение удельного сопротивления фильтрации и капиллярного всасывания осадка, изменение пространственной структуры осадков. Предложена гипотеза действия СВЧ ЭМИ на осадки сточных вод. The article is devoted to the study of the infl uence of microwave electromagnetic radiation (UHF EMP) on the properties of sewage sludge. The possibility of using microwave radiation for their processing is shown. The results of experiments confi rming the positive eff ect of the process under study on the degree and speed of compaction of a mixture of precipitation and activated sludge, improvement of their moisture yield, an increase in the yield of heavy metal impurities in decanted water, a decrease in the specifi c resistance of fi ltration and capillary suction of the sediment, precipitation. A hypothesis is proposed for the eff ect of UHF EMP on wastewater sludge.

Microwave Irradiation in Technologies of Wastewater and Wastewater Sludge Treatment: A Review

“…A change in the spatial configuration of samples of a sediment mixture after MW heating to a temperature of 75 °C [34,36] was observed during a microbiological analysis using an electron microscope Micromed 2 (3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20). Figure 4 The initial structure of the sediment flakes (Figure 4a) is uneven, coarse-dispersed, with separate large conglomerates, saturated with protozoan bacteria.…”

“…However, there are not enough recent scientific publications that indicate the possibility of using microwaves to facilitate the extraction of metal ions from WW and WWS. The articles [6,14] refer to changes in the properties of sewage sludge and the MW intensification of the release of metal ions into decanted water (Table 8). Results have been derived from batch experiments.…”

“…People actively involve microwaves of a particular range (frequency from 1 to 100 GHz) in radiolocation. MW reactors are increasingly adopted to neutralise various solid and liquid wastes produced by people and industrial enterprises [4][5][6].…”