One-Sludge Denitri-Nitrification System Application in Reconstruction of Biological Treatment Stations in Russian Federation

2015 ◽  
Vol 725-726 ◽  
pp. 1325-1331 ◽  
Author(s):  
Elena Gogina ◽  
Olga Ruzhitskaya
Keyword(s):  
Activated Sludge ◽  
Russian Federation ◽  
System Application ◽  
Biological Treatment ◽  
Stable System ◽  
Treatment Facilities ◽  
The Russian Federation

The paper presents the main problems and their solutions in the reconstruction of treatment facilities in the Russian Federation. The paper presents the results of research aimed the use of the stable system, which is based on nitrification activated sludge appliance, when the sludge contains bacteria-heterotrophic-nitrificators.

Обезвреживание поверхностного стока – важный вклад в охрану водных объектов

2019 ◽  
pp. 48-54
Author(s):  
G. Variushina
Keyword(s):  
Wastewater Treatment ◽  
Russian Federation ◽  
Surface Runoff ◽  
Commercial Fishing ◽  
Research Activity ◽  
Educational Work ◽  
Industrial Enterprises ◽  
Retention Basin ◽  
Treatment Facilities ◽  
The Russian Federation

Приводятся сведения о разработанных специалистами АО МосводоканалНИИпроект научных исследованиях и проектных решениях в области очистки поверхностных сточных вод с территории Москвы, причинах загрязнения водоисточников неочищенными поверхностными стоками в 1970х годах. Представлены основные характеристики комплексов глубокой очистки поверхностных стоков, разработанных проектов очистных сооружений для промышленных предприятий с площадью водосбора 0,3 1 5 10 и 15 га. Показано, что эффективность очистки поверхностных сточных вод соответствует требованиям, предъявляемым к водоемам рыбохозяйственного значения. При этом для обезвоживания осадка, образующегося в накопительном резервуаре очистных сооружений, в технологической схеме предусмотрена песковая площадка, а для сбора плавающих нефтепродуктов нефтеразделитель. Новизна разработанной технологии обезвреживания поверхностного стока и обработки осадка была подтверждена пятью патентами РФ, одобрена Госстроем РФ, Центральным управлением по рыбохозяйственной экспертизе и нормативам по сохранению, воспроизводству водных биологических ресурсов и акклиматизации, Городской санитарной службой Москвы и области, службами Москомприроды и Мосгосэкспертизы. Показан вклад специалистов лаборатории обработки природных, промышленнодождевых сточных вод и осадка в решение проблем очистки поверхностного стока. Приведена информация об истории развития и перспективных направлениях научной деятельности лаборатории, ее планах в организационнометодической и воспитательной работе с молодыми специалистами.Information on the research and design solutions developed by the experts of MosvodokanalNIIproject JSC in the field of surface runoff treatment from the territory of Moscow, the causes of water sources pollution with raw surface runoff in the 1970s. The basic characteristics of the complexes for the enhanced treatment of surface runoff, the developed projects of wastewater treatment facilities for industrial enterprises with a catchment area of 0.3 1 5 10 and 15 ha. It is shown that the effectiveness of surface runoff treatment meets the requirements to water bodies of commercial fishing importance. At the same time, for dewatering of sludge generated in the retention basin of wastewater treatment facilities, a grit dewatering bay is included into the process flow scheme, and an oil separator is used to collect floating oil products. The novelty of the developed technology for neutralization of surface runoff and sludge treatment has been acknowledged by five patents of the Russian Federation, approved by Gosstroy of the Russian Federation, the Central Department of Fisheries Examination and Review and Protection and Renewal and Acclimatization Standards, the Moscow City and Moscow Region Sanitary Service, Moskompriroda and Mosgosekspertiza services. The contribution of the research workers of the laboratory for the treatment of natural, industrialstorm wastewater and sludge processing to the solution of problems of surface runoff treatment is demonstrated. The information about the history of development and promising areas of research activity of the laboratory, its plans in the organizational, methodological and educational work with young professionals is given.

scholarly journals ANALYSIS OF PHYSICOCHEMICAL WASTEWATER TREATMENT IN ARCTIC ZONES

2020 ◽  
Vol 22 (1) ◽  
pp. 152-163
Author(s):  
E. I. Vialkova ◽  
E. S. Glushchenko ◽  
T. S. Velizhanina ◽  
E. Y. Osipova
Keyword(s):  
Wastewater Treatment ◽  
Biological Treatment ◽  
Wastewater Discharge ◽  
Total Change ◽  
Climatic Zones ◽  
Physicochemical Treatment ◽  
Treatment Facilities ◽  
The Russian Federation ◽  
Sewage Systems ◽  
Design Construction

The large part of the Russian Federation locates in arctic and subarctic climatic zones, which determine the specificity of design, construction and operation of sewage systems of these regions. Nowadays, the most part of small Arctic towns has no wastewater treatment facilities, while the available biological treatment facilities do not work properly. An alternative way is physicochemical treatment, which is more resistant to severe climate and volley wastewater discharge than biological treatment. The paper presents the research results of total change the biological into physicochemical treatment. The main stages of such a treatment include coagulation, filtration, oxidation and two-stage filtration (mechanical and absorption). The experiments show a 90.8% decrease in the concentration of chemical oxygen and a 74% and 82.5% decrease in nitrates and ammonium.

scholarly journals The present situation and trends of wastewater treatment in small settlements and rural areas of Lithuania

2019 ◽  
pp. 243-250
Author(s):  
Regimantas Dauknys
Keyword(s):  
Wastewater Treatment ◽  
Activated Sludge ◽  
Surface Waters ◽  
Rural Areas ◽  
Biological Treatment ◽  
Wastewater Treatment Plants ◽  
Present Situation ◽  
Treatment Facilities ◽  
Biological Filters ◽  
Activated Sludge Systems

This article presents the wastewater treatment in small settlements and rural areas ofLithuania, including descriptions of capacity and loading of wastewater treatment plants(WWTPs), types of treatment facilities, and development trends of biological treatmentfacilities. In 2000 Lithuania had 597 WWTPs with capacity up to 1000 m3/d, 95% of them arethe biological treatment plants. Today the most of these WWTPs are unloaded due to thetendency to centralise wastewater treatment in rural areas of Lithuania that were in the eightand ninth decades.In small settlements and rural areas of Lithuania the aeration facilities are predominant. In theeight and ninth decades practically only the activated sludge systems were built. The situationbegan to change in the last decade of the last century: the biological filters and soil filtrationfacilities with discharge into surface waters were applied more frequently, so the building ofaeration facilities started to decrease.

Features of cyanobacterial-algal communities in artificial ecosystems of treatment facilities of Meleuz City

2021 ◽  
pp. 32-36
Author(s):  
Giuzel A. Gulamanova ◽  
Luiza Z. Teltsova
Keyword(s):  
Activated Sludge ◽  
Biological Treatment ◽  
Single Species ◽  
Organic Pollution ◽  
Arthrospira Platensis ◽  
Algal Communities ◽  
Number Of Species ◽  
Artificial Ecosystems ◽  
Treatment Facilities ◽  
The City

In this article, cyanoprokaryotes and algae of activated sludge of biological treatment facilities of the city of Meleuz were studied. The research revealed 27 species of algae and cyanoprokaryotes from 4 divisions. The leading class in terms of the number of species is Cyanophyceae: they accounted for 14 species, or 35.5% of the total number of species. In second place belongs to representatives of the class Bacillariophyceae (19.3%), followed by representatives of the class Chlorophyceae (12.9%). Four classes (Trebouxiophyceae, Mediophyceae, Coscinodiscophyceae, Euglenophyceae) were represented by single species. Most taxa below the class (orders, families, genera) are also represented by single species. The structure-forming species (the most common) include 3 species of cyanoprokaryotes: Microcystis aeruginosa, Oscillatoria planctonica, Arthrospira platensis. The number of saprobity indicator species (degree of organic pollution) was 18 species, or 58% of the total number of species. Indicators of all saprobic zones, except for xenosaprobic ones, were revealed. The degree of organic pollution was 2.96, which corresponds to the mesosaprobic zone. There is no correlation between the number of species and seasonality, and the communities are relatively stable. It can be concluded that the cyanoprokaryotic-algal communities of activated sludge of biological treatment facilities in the city of Meleuz are characterized by a poor species composition, with a predominance of zionoprokaryotes. The level of organic pollution corresponds to a moderately polluted area.

scholarly journals Analysis of the state of the sewerage systems on the territory of the Russian Federation

2019 ◽  
pp. 81-86
Author(s):  
Aleksandr Ivanovich Esin ◽  
Maria Petrovna Gorbacheva
Keyword(s):  
Russian Federation ◽  
Technical Condition ◽  
The State ◽  
Water Bodies ◽  
Wastewater Disposal ◽  
Current State ◽  
Treatment Facilities ◽  
The Russian Federation

The article analyzes the current state of treatment facilities as part of wastewater disposal systems in the Russian Federation. Poor technical condition of treatment facilities is the main cause of pollution of water bodies. The measures aimed at improving the efficiency of treatment facilities are formulated.

scholarly journals FENTON OXIDATION AS AN ALTERNATIVE TO BIOLOGICAL WASTEWATER TREATMENT

2020 ◽  
Author(s):  
T.M. Ganiev ◽  
Keyword(s):  
Wastewater Treatment ◽  
Activated Sludge ◽  
Biological Treatment ◽  
Fenton Oxidation ◽  
Biological Wastewater Treatment ◽  
Cleaning Method ◽  
Advantages And Disadvantages ◽  
Treatment Facilities ◽  
Oxidation Reactor

This article discusses the possibility of replacing biological treatment units with activated sludge with a Fenton oxidation reactor. The main advantages and disadvantages of this cleaning method are determined. A possible scheme for the implementation of the project of treatment facilities operating on the principle of Fenton oxidation is considered.

DISINTEGRATION AND SOLUBILISATION OF ACTIVATED SLUDGE FROM RUBBER PROCESSING INDUSTRY BY OZONATION

2017 ◽  
Vol 80 (1) ◽  
Author(s):  
Siti Fatimah Zahra Mohd Sarif ◽  
Syifa' Syahida Alias ◽  
Fahmi Muhammad Ridwan ◽  
Che Zulzikrami Azner Abidin ◽  
Umi Fazara Md. Ali ◽  
...  
Keyword(s):  
Organic Matter ◽  
Activated Sludge ◽  
Biological Treatment ◽  
Municipal Wastewater ◽  
Batch Process ◽  
Municipal Wastewater Treatment ◽  
Rubber Glove ◽  
Huge Amount ◽  
Processing Industry ◽  
Treatment Facilities

The activated sludge system is an effective biological treatment applied widely in both industrial and municipal wastewater treatment facilities worldwide. Yet, the big issue arising from this process is the huge amount of sludge production at the end of the process. Thus, this study was aimed at studying the sludge disintegration and solubilisation efficiency of activated sludge from rubber glove processing industry using ozonation. The ozonation was conducted in batch process, and the sample was analyzed after 10, 20, 30, 40, 50 and 60 minutes of contact time. It was found that ozone was able to cause the bacteria in the activated sludge to undergo lysis, which solubilised the organic matter. The settling property was improved with the SVI reduced from 103 to 79 mL/g. Ozonation at 40 minute with ozone consumption of 22.7 mgO3/gTSS was able to reduce SS, FS, and VSS to 16.6%, 19%, and 14%, respectively. The SCOD solubilisation was achieved at a maximum of 71.8%, while the nitrogenous compound of NH3-N was at 34% due to the release of organic matter from EPS and sludge cells after 60 minutes of treatment. A graph was plotted to evaluate the correlation between sludge disintegration and solubilisation, which showed a positive correlation (R2=0.970). Thus, ozonation was found to be an efficient method to disintegrate and solubilise the activated sludge from rubber processing industry.

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