Hydrobiological Investigation of the Activated Sludge from Sequencing Batch Reactors of WWTP–Hisarya
Journal Title: Ecologia Balkanica - Year 2014, Vol 5, Issue 0
Abstract
The operations of the relatively new wastewater treatment plant of Hisarya, Bulgaria were evaluated in the present paper. The bacterial diversity of activated sludge from aeration basins of cyclic type (SBR-method) during the seasons was studied. The Cyclic Activated Sludge System is one of the most popular sequencing batch reactor (SBR) processes. The hydrobiological characteristic of the activated sludge was performed with regular observations by using light microscopic examinations, but also by evaluation of the flocculation ability and settleability. The presence of positive bioindicators - Aspidisca and Epistyllis species during the investigated period of time (2012 Year) was established, which confirmed the gut purification of the wastewater and the carrying out of the nitrification process. Moreover, the results obtained demonstrated that the performance of the SBR maintained high level, and the SBR system remained stable during this study.
Authors and Affiliations
Dasha Mihaylova, Tsvetko Prokopov, Nikolay Mihalkov
Keywords
Related Articles
- EP ID EP105612
- DOI -
- Views 132
- Downloads 0
Climate Change Assessments for Lakes Region of Turkey
Climate change is one of the most important challenges for forestry. Forests are known to be most efficient natural tools to ensure availability and quality of water in many regions. Besides, planning of forest resources...
In Memoriam - BLAGOVEST KIRILOV TEMELKOV (1956 – 2010)
Evaluation of Adsorption Capacity of Chitosan-Citral Schiff Base for Wastewater Pre-Treatment in Dairy Industries
In this study, we aimed to evaluate the adsorption capacity of the Schiff base chitosan-citral for its application in dairy wastewater pre-treatment. Chemical oxygen demand (COD) reduction was the factor used to evaluate...
On the Road Mortality of the Northern White-Breasted Hedgehog (Erinaceus roumanicus Barrett-Hamilton, 1900) in Bulgaria
The mortality of the northern white-breasted hedgehog (Erinaceus roumanicus) was studied, counting the killed hedgehogs (number/10 km) at 85 km section from “Trakia” Highway (from Plovdiv City to Stara Zagora Town) and t...
Contribution to the Knowledge on the Gastropod Fauna of the Natural Park “Balgarka” (Stara Planina Mts., Bulgaria)
A total of 35 species of snails were found: 6 freshwater and 29 terrestrial. One species was considered as local endemic and 5 species as endemics for Stara Planina Mts. One species was invasive.