Use of PET Granules for Improving a Surface Runoff Treatment

2021 ◽  
Vol 1038 ◽  
pp. 242-250
Author(s):  
Anatolii Grytsenko ◽  
Anton Matsak ◽  
Olha Rybalova ◽  
Olena Bryhada ◽  
Ilgar Dadashov
Keyword(s):  
Waste Water ◽  
Wastewater Treatment ◽  
Polyurethane Foam ◽  
Surface Runoff ◽  
Treatment Method ◽  
Anthropogenic Load ◽  
Anthropogenic Factors ◽  
Additional Load ◽  
Groundwater Aquifers ◽  
The World

Pollution of surface and ground waters by surface (rain and melt) waste water is a big problem for many countries of the world. In addition to anthropogenic factors leading to the pollution of surface runoff, one should add runoff, which is formed after extinguishing fires of various scales and territories. As a result of extinguishing fires, a large amount of pollutants enters surface wastewater, which creates an additional load on soils, groundwater aquifers and water bodies. The paper proposes a wastewater treatment method using PET granules and polyurethane foam granules as a filtering layer. The use of PET packaging waste for the purification of rain and melt wastewater allows to reduce the anthropogenic load on the environment and to increase the use of plastic waste.

scholarly journals MICROBIAL FUEL CELL (MFC) IN TREATING SPENT CAUSTIC WASTEWATER

2018 ◽  
Vol 3 (1) ◽  
pp. 17-25
Author(s):  
Norsafiah Fazli ◽  
Noor Sabrina Ahmad Mutamim ◽  
Mohd Faizal Ali
Keyword(s):  
Water Pollution ◽  
Wastewater Treatment ◽  
Fuel Cell ◽  
Natural Resources ◽  
Microbial Fuel Cell ◽  
Treatment Method ◽  
Treated Wastewater ◽  
The World ◽  
Low Efficiency ◽  
Spent Caustic

Some of the major problems encountered by the world are water pollution and natural resources depletion. One of the major factors which contribute to water pollution is insufficiently treated wastewater whereas the depletion of natural resources is due to the dependability of the fossil fuel as the main energy source. Both of these issues show the world urgently required an effective technology of wastewater treatment and energyrecovery. Microbial Fuel Cell (MFC) is a treatment method that can achieve the needs of effective treatment of wastewater and energy recovery simultaneously. As mentioned, insufficiently treated wastewater is one of the main causes which contributes to water pollution. Spent caustic wastewater is one of the industrial wastewater that is difficult to be treated, handled and disposed due to its noxious properties. Existing treatment method of treating spent caustic wastewater are limited by low efficiency. However, by applying MFCs, organic and inorganic contaminants are oxidized by biomass and produce electron that is transferred to electrode. The movement of the electron from anode to cathode generate electricity and turns MFC into a treatment method that able to provide both wastewater treatment and energy production. This article presents a review of spent caustic wastewater and its existing treatment method as well as the MFC researches in terms of its configuration and factors affecting its performance

DESIGN PLANNING WASTEWATER TREATMENT PLANT OF NATA DE COCO INDUSTRY WITH THE ACTIVATED SLUDGE PROCESS

2016 ◽  
Vol 9 (2) ◽  
Author(s):  
Dinda Rita K. Hartaja ◽  
Imam Setiadi
Keyword(s):  
Waste Water ◽  
Wastewater Treatment ◽  
Activated Sludge ◽  
Waste Water Treatment ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Appropriate Technology ◽  
Waste Water Treatment Plant ◽  
Activated Sludge Process ◽  
High Level

Generally, wastewater of nata de coco industry contains suspended solids and COD were high, ranging from 90,000 mg / l. The high level of of the wastewater pollutants, resulting in nata de coco industry can not be directly disposed of its wastewater into the environment agency. Appropriate technology required in order to process the waste water so that the treated water can meet the environmental quality standards that are allowed. Designing the waste water treatment plant that is suitable and efficient for treating industrial wastewater nata de coco is the activated sludge process. Wastewater treatment using activated sludge process of conventional (standard) generally consists of initial sedimentation, aeration and final sedimentation.Keywords : Activated Sludge, Design, IPAL

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.

The Staging of Large Wastewater Treatment Plants - A “Modular” Approach

1992 ◽  
Vol 25 (4-5) ◽  
pp. 67-73
Author(s):  
H. Fleckseder ◽  
L. Prendl ◽  
H. Meulenbroek
Keyword(s):  
Wastewater Treatment ◽  
Driving Force ◽  
Wastewater Treatment Plants ◽  
Aeration Tank ◽  
Modular Approach ◽  
Central European ◽  
Plant Hydraulics ◽  
The World ◽  
Whole Life Cycle ◽  
Over Time

The primary driving force for re-investments in wastewater treatment plants in Austria - and also other countries in Central Europe - is at present not an increase in load to treatment but a marked increase in effluent requirements to be fulfilled. (The re-investments necessary for sludge handling and treatment remain outside this paper.) Within a period of 20 years, the load specific requirements on aeration tank volume rose five- to tenfold, when Lv = 2.0 kg BOD5/(m3d) was the starting value, and roughly doubled for final clarifiers. In addition, the importance of the application and expansion of primary sedimentation decreased as well. This development over time in Central European countries as well as the need to utilize previous investments as long as possible - 35 to 60 years for civil works are common as periods of depreciation - indicate that investments in new plant at any location in the world have to consider the possible whole life cycle of a plant and that plant hydraulics becomes the “key hook” for expandability.

The Vyredox and Nitredox Methods of in situ Treatment of Groundwater

1988 ◽  
Vol 20 (3) ◽  
pp. 149-163 ◽  
Author(s):  
Carol Braester ◽  
Rudolf Martinell
Keyword(s):  
Water Treatment ◽  
Surface Water ◽  
Traditional Method ◽  
Treatment Method ◽  
Nitrate Treatment ◽  
The Past ◽  
The World ◽  
Nitrate And Nitrite ◽  
Iron And Manganese

Nearly one fifth of all water used in the world is obtained from groundwater. The protection of water has become a high priority goal. During the last decades pollution of water has become more and more severe. Today groundwater is more and more used in comparison with surface water. Recently we have seen accidents, which can pollute nearly all surface water very quickly. Generally the groundwater is easier to protect, as well as cheaper to purify, and above all it is of better quality than the surface water. During the past two decades, alternatives to the traditional method of treating the water in filters have been developed, that is in situ water treatment i.e. the VYREDOX and NITREDOX methods. The most common problem regarding groundwater is too high content of iron and manganese, which can be reduced with the VYREDOX method. In some areas today there are severe problems with pollution by hydrocarbons and nitrate as well, and with modification of the VYREDOX treatment method it is used for hydrocarbon and nitrate treatment as well. The method to reduce the nitrate and nitrite is known as the NITREDOX method.

scholarly journals Wastewater Treatment and Water Reuse in Spain. Current Situation and Perspectives

Water ◽  
2019 ◽  
Vol 11 (8) ◽  
pp. 1551 ◽  
Author(s):  
Antonio Jodar-Abellan ◽  
María Inmaculada López-Ortiz ◽  
Joaquín Melgarejo-Moreno
Keyword(s):  
Water Quality ◽  
European Union ◽  
Wastewater Treatment ◽  
Water Reuse ◽  
Wastewater Reuse ◽  
The European Union ◽  
Water Planning ◽  
Structural Problem ◽  
The World ◽  
Access To Water

The issues of wastewater treatment and the reuse of water are of great importance, especially in areas where the shortage of conventional resources is a structural problem, as it is in the case of Spain. Wastewater reuse is a valid mechanism to avoid problems derived from droughts and water scarcity. It allows access to water resources in areas with water restrictions and to prevent futures scenarios, due to it being expected that water consumption will double by 2050 over the world. Thus, the likelihood that this unconventional, strategic resource would become scarce is unquestionable, particularly in cases where water planning and exploitation systems prioritize the preservation, protection, and improvement of water quality, as well as the sustainable and efficient use of natural resources. This paper shows how wastewater treatment and reuse are linked, as the reuse of wastewater is associated with a previous regeneration, and both of them are essential tools for maximizing environmental outcomes, as called for in the European Union Directives.

Development of the Acidic Mining Wastewater Treatment Technology

2013 ◽  
Vol 295-298 ◽  
pp. 1372-1375 ◽  
Author(s):  
Guang Wei Liu ◽  
Run Cai Bai
Keyword(s):  
Waste Water ◽  
Wastewater Treatment ◽  
Acid Mine Drainage ◽  
Mine Drainage ◽  
Mining Waste ◽  
Formation Condition ◽  
Research Development ◽  
Treatment Technology ◽  
Acid Mine ◽  
Mining Wastewater

The main formation condition and harmfulness of the acidic mining waste water's were analyzed in this paper. The treatment technology of the acid mine drainage's was briefly introduced. The research development of acid mine drainage was summarized in recent years. It was the fact that developing the efficient, cheap, safe and easy treatment technology of acid mine should be necessary and inevitably and some success management experiences of acidic waste water were applied in acidic mining wastewater.

Water reuse for irrigation from waste water treatment plants with seasonal varied operation modes

2004 ◽  
Vol 50 (2) ◽  
pp. 47-53 ◽  
Author(s):  
P. Cornel ◽  
B. Weber
Keyword(s):  
Waste Water ◽  
Wastewater Treatment ◽  
Water Treatment ◽  
Treatment Process ◽  
Waste Water Treatment ◽  
Treated Wastewater ◽  
Nitrifying Bacteria ◽  
Water Treatment Plants ◽  
Operation Modes ◽  
Waste Water Treatment Plants

Irrigation periods are usually limited to vegetation periods. The quality requirements for treated wastewater for disposal and for reuse are different. The reuse of water for irrigation allows partly the reuse of the wastewater's nutrients (N and P). Outside the irrigation period the water must be treated for disposal, thus nutrient removal is often required in order to avoid detrimental effects on the receiving surface water body. Only wastewater treatment plants with different operation modes for different seasons can realise these requirements. The nitrification is the most sensitive biological process in the aerobic wastewater treatment process. At low water temperatures the nitrifying bacteria need several weeks to re-start full nitrification after periods without NH4-removal. Therefore it is necessary to develop options for waste water treatment plants which allow a fast re-start of the nitrification process. Based on theoretical considerations and computer simulations of the activated sludge treatment process, one possibility for implementing a wastewater treatment plant with different seasonal operation modes is evaluated.

Research of Treatment Technology for Electroplating Wastewater

2014 ◽  
Vol 487 ◽  
pp. 713-716 ◽  
Author(s):  
Yi Dan Zhou ◽  
Miao Sun ◽  
Li Juan Wang ◽  
Guan Nan Xi
Keyword(s):  
Waste Water ◽  
Wastewater Treatment ◽  
Electrochemical Method ◽  
Chemical Process ◽  
Biological Treatment ◽  
Chemical Method ◽  
Treatment Technology ◽  
Electroplating Wastewater ◽  
The Common ◽  
Physical And Chemical

The sources and composition of electroplating waste water are summarized. The common wastewater treatment technology, such as physical and chemical method, physic-chemical process, biological treatment and electrochemical method, and so on. Then the vision for the development of electroplating wastewater treatment technology is made.

scholarly journals Quality Assessment of Full-Scale Municipal Wastewater Treatment Plant Consisting UASB Reactors and Polishing Ponds During its Start-Up Phase in India

2016 ◽  
Vol 11 (1) ◽  
pp. 47-55
Author(s):  
Nadeem Khalil ◽  
Tarique Ahmad
Keyword(s):  
Waste Water ◽  
Wastewater Treatment ◽  
Quality Assessment ◽  
Wastewater Treatment Plant ◽  
Treatment Plant ◽  
Municipal Sewage ◽  
Anaerobic Sludge ◽  
General Hypothesis ◽  
Start Up ◽  
Uasb Reactors

Amongst the technologies available, the up flow anaerobic sludge blanket (UASB) process has been one of the most widely applied methods for municipal waste water treatment especially in countries of warm climatic conditions like India. However, past about one decade has witnessed rapid decline in the UASB popularity and its implementation. There has been criticism from various sections on the performance of UASB reactors for not complying with the prescribed discharge standards. It is a general hypothesis that the UASB reactors are not meant for diluted waste water like municipal sewage when typically the BOD is less than 150 mg/l, COD 250 mg/l and sulphates are more than 150mg/l. An attempt has been made through this study to investigate the reasons on the basis of quality assessment and field observations on UASB reactors and it’s post-treatment of a newly commissioned (start-up) municipal (sewage) wastewater treatment plant commonly called ‘STP’ having capacity of 14 million litres per day (MLD). Study was aimed to know the gaps during the commissioning stage which could be related to poor removal efficiencies. This paper briefly discusses some issues related to operation and maintenance of the UASB plants with purpose for improvements.

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