Open AccessIntroduction of New Technical Solutions for Improving Environmental Protection for Biotech Companies
Author(s) -
Сеник,
E. Senik,
Виноградов,
M. Vinogradov,
Таранов,
R. Taranov,
Козодаев,
A. Kozodaev,
Ксенофонтов,
Boris Ksyenofontov,
Воропаева,
A. Voropaeva
Publication year - 2015
Publication title -
bezopasnostʹ v tehnosfere
Language(s) - English
Resource type - Journals
ISSN - 1998-071X
DOI - 10.12737/16962
Subject(s) - activated sludge , yeast , biomass (ecology) , hydrolysate , waste management , pulp and paper industry , microbiology and biotechnology , fermentation , business , chemistry , environmental science , hydrolysis , engineering , food science , biology , sewage treatment , biochemistry , agronomy
The paper discusses the environmental issues of biotech industries. It presents a schematic diagram of yeast biomass
feed on paraffin oil and producing fodder yeast hydrolysis. Possible ways of optimizing the thickening stage activated
sludge, including through the use of various separators are described. Results of industrial tests of various separators
are presented. In the process of carrying out pilot tests we found that for biotech companies the most appropriate way of
thickening activated sludge is its pre-flotation and further centrifugation. We define the ways of recycling activated sludge,
in particular in its processing operation, followed by acid hydrolysis using an additional substrate when growing feed yeast.
The dependence of yeast biomass yield on the amount applied to the fermentation of the hydrolysate activated sludge is
offered. The importance of quality used activated sludge, in particular on the content of mineral elements is emphasized.
Other ways of handling and recycling or disposal of excess sludge are also considered.