Technological Capabilities of a Special Strategy for Processing Cycloidal Helical Surfaces with a Non-Profiled Tool

Гончаров, А. А.; Vasiliev, Aleksandr S.

doi:10.21203/rs.3.rs-189911/v1

Cited by 1 publication

(1 citation statement)

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“…When replacing a worn stator or as the rotor wears out, a new rotor-stator pair is selected. It, however, is fraught with some difficulty: due to the error in the shape of the stator bore and, to a lesser extent, in the shape of the rotor, there is a problem of the inaccuracy of the preload oscillation [26].…”

Section: Resultsmentioning

confidence: 99%

Improvement of the Quality of the Human Environment by Transporting and Stabilizing Sewage Sludge for Further Processing

Vaysman¹,

Strunnikova²,

Чукурна

et al. 2021

Lecture Notes in Mechanical Engineering

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There are many threats to the quality of human life in the environment of the modern world. Among them, one can single out the growing pollution of the environment and water resources, which leads to crop failures, hunger, and disease. Concomitantly, narrowly targeted measures often lead to an aggravation of the situation as a whole. For example, an attempt to solve the problem of yield quality deterioration by increasing the use of synthetic fertilizers leads to accelerated destruction of the fertile layer due to the irreversible loss of organic matter. It is proposed to use complex technology, including standard dewatering of sewage sludge at wastewater treatment plants, transportation, disinfection, and processing into a highly effective organic fertilizer. This paper deals with the problems of transportation of a viscous, epidemically dangerous, biologically aggressive substance for its further processing. To improve the quality of working conditions directly at treatment facilities to protect the environment, human health and counteract the emergence of epidemics, it is necessary to develop sealed systems for safe sludge transportation, maximally isolated from the environmentwith taking into account many variables, such as environmental temperature, intern biological processes, various tribometric, rheological and thermophysical properties. Upon the laboratory studies and bench tests, the main affected factors were identified. Fundamental design solutions for transporting substances with rheological characteristics of the sludge below 80% humidity level are proposed. Research has been carried out to decontaminate the substance during its transportation.

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Section: Resultsmentioning

confidence: 99%