scholarly journals Rain Precipitation Parameters for the Design of Surface Effluent Treatment Facilities from the Territory of Industrial Enterprises

2021 ◽  
Vol 720 (1) ◽  
pp. 012021
Author(s):  
E D Palagin ◽  
A K Strelkov ◽  
A A Pavluhin
Keyword(s):  
Effluent Treatment ◽  
Industrial Enterprises ◽  
Treatment Facilities ◽  
Rain Precipitation

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.

Refuse, Recycling and Resource Recovery in Industrial Applications

1986 ◽  
Vol 18 (3) ◽  
pp. 57-67 ◽  
Author(s):  
I. B. Law
Keyword(s):  
Water Source ◽  
Resource Recovery ◽  
Industrial Applications ◽  
Effluent Treatment ◽  
Environmental Pressures ◽  
Treated Sewage ◽  
Management Schemes ◽  
Treatment Facilities ◽  
Treated Sewage Effluent ◽  
Intake Water

Growing environmental pressures and escalating intake water costs are causing an increasing number of industrialists to reappraise their effluent treatment facilities with a view to effluent recycle and/or resource recovery. In certain instances industrialists have opted for treated sewage effluent as a water source for their process. Water Management Schemes are being, or have been, implemented at a number of industrial concerns in order to rationalise overall water intake and effluent disposal costs.

Removal of individual sterols during secondary treatment of pulp mill effluents

2012 ◽  
Vol 47 (1) ◽  
pp. 56-65 ◽  
Author(s):  
Zahid Mahmood-Khan ◽  
Eric R. Hall
Keyword(s):  
Pulp Mill ◽  
Effluent Treatment ◽  
Secondary Treatment ◽  
Waste Sludge ◽  
Paper Manufacturing ◽  
Secondary Effluents ◽  
Treatment Facilities ◽  
Pulp Mill Effluents ◽  
Sterol Profile ◽  
Pass Through

Analysis of plant sterols in pulp mill effluents is complex and several investigations have combined wood extractives with sterols or have reported total sterols collectively. The present study exclusively focuses on the fate of individual sterols generated in pulp and paper manufacturing as they pass through activated sludge biotreatment system. Before secondary treatment the pulp mill effluents contained 33% ß-sitosterol, 26% campesterol, 22% ß-sitostanol, 17% stigmasterol and 2% ergosterol (1,000–1,800 μg/L mean total sterols). After treatment, the effluents contained 44% ß-sitosterol, 22% campesterol, 18% ß-sitostanol, 14% stigmasterol and 2% ergosterol (176–428 μg/L mean total sterols). Each sterol fraction showed different removal efficiency. ß-Sitosterol, the major fraction, was removed relatively poorly (65%) while campesterol was removed most efficiently (81%) compared with the removal of other fractions (ß-sitostanol 74% and stigmasterol 64%). The differential removal of sterol fractions altered the sterol profile during different stages of the secondary treatment. Owing to its poor removal, ß-sitosterol is the most persistent fraction in treated/untreated pulp mill effluents. Typically, 21% of the incoming sterols were contained in secondary effluents and 23% in waste sludge without biodegradation. Optimizing the design/operation of treatment systems for removal of ß-sitosterol and stigmasterol would improve the performance of effluent treatment facilities.

scholarly journals Removal of Cr(III) From Water By Polyurethane Foam Incorporated With Green Liquor Dregs Waste

2021 ◽  
Author(s):  
Guilherme Pereira Schoeler ◽  
Thays França Afonso ◽  
Rafael de Avila Delucis ◽  
Benedict C Okeke ◽  
Robson Andreazza
Keyword(s):  
Polyurethane Foam ◽  
Expansion Method ◽  
Effluent Treatment ◽  
Free Expansion ◽  
Green Liquor ◽  
Removal Capacity ◽  
Green Liquor Dregs ◽  
Foam Composite ◽  
Treatment Facilities ◽  
Low Efficiency

Abstract Water bodies contaminated by heavy metals cause a series of severe environmental and health issues. Chromium compounds stand out as one of the main contaminants since they are widely used by several industries. The low efficiency of effluent treatment facilities and the expensive sanitation procedures needed to remove metals from the water lead to serious concerns about the water quality in Brazil. In this study, a rigid polyurethane foam incorporated with green liquor dregs waste was prepared by the free expansion method. The foam composite and its isolated phases were evaluated for removing Cr(III) from water. The isolated dregs removed 81.93% of the Cr(III), which yielded a removal capacity of 135.45 mg·g-1. Whereas, the foam composite displayed Cr(III) removal percentage and capacity of 36.15% and 58.50 mg·g-1, respectively. Results suggests that the hybrid material may be considered for selective removal and extraction of Cr(III) from contaminated water.

scholarly journals Algorithm for controlling the process of buffer wastewater neutralization

2021 ◽  
pp. 27-35
Author(s):  
Anatolii Zhuchenko ◽  
Ruslan Osipa ◽  
Liudmyla Osipa ◽  
Lesia Ladieva
Keyword(s):  
Control System ◽  
Process Control ◽  
Control Systems ◽  
Block Diagram ◽  
Domestic Wastewater ◽  
Automated Control ◽  
Diagram Method ◽  
Industrial Enterprises ◽  
Treatment Facilities

In Ukraine, the condition of surface water near industrial enterprises is extremely critical. The operation of enterprises leads to intensive water pollution with industrial and domestic wastewater. Therefore, improving the quality of treatment facilities through the introduction of automated control systems is an urgent problem. For the operation of automated control systems for typical cleaning processes, a software package is required, which is developed on the basis of appropriate algorithmic software and mathematical models of processes. To obtain them, methods of mathematical and simulation modeling and block diagram method of algorithmization were used. In order to assess the quality of the developed algorithm for controlling the process of buffer wastewater neutralization during operation, a comparison of control system operation based on this algorithm with the most successful foreign variants of neutralization control systems was made. Simulation for the average values of operating parameters Q = 75 m3 / h, CP = 75 g / l, and Ck = 2 g / l at minimum b = 0.02 g / l pH and maximum buffer value b = 0.47 g / l pH, and also with  unidirectional extreme combination of parameters Q = 50 m3 / h, CP = 100 g / l, b = 0,02 g / l pH and Q = 100 m3 / h, CP= 50 g / l, for minimum b = 0.02 g / l pH and maximum buffering value  b = 0.47 g / l pH shows that the best quality of transient processes is for the control system operating on the basis of the developed algorithm. For any combination of parameters, the transients for this control system provide better quality transients. Studies have shown that the control system based on the developed algorithm in comparison with the previously proposed systems provides better process control by reducing the time of transients and reducing the dynamic deviation of the output parameters, which improves the quality of wastewater treatment. Given the non-stationary process and high requirements for the cleaning parameters, manual control of this process is beyond the power of even an experienced operator. The developed mathematical model describing the dynamics of the wastewater neutralization reactor with buffer properties and the process control algorithm made it possible to proceed to the development of the control system software, which is necessary for the automated control of this process.

scholarly journals RATIONAL CONSTRUCTION AND TECHNOLOGICAL PARAMETERS OF WATER TREATMENT FACILITIES IN RURAL AREAS

2019 ◽  
pp. 74-81
Author(s):  
Y. B. Mosiichuk ◽  
V. P. Khoruzhy
Keyword(s):  
Wastewater Treatment ◽  
Rural Areas ◽  
Water Filtration ◽  
Small Scale ◽  
Rural Settlements ◽  
Technological Parameters ◽  
Active Sludge ◽  
Industrial Enterprises ◽  
High Efficient ◽  
Treatment Facilities

In view of the development of cottage construction and enterprises of agricultural products processing, located mainly in rural areas, the development of high-efficient, reliable and easy-to-use treatment plants for the purification of domestic wastewater of low quality is very relevant. The objective of the research is to ensure the high quality purified water and minimize capital and operating costs. To solve this problem, the methods of physical and mathematical modeling were used, as well as numerical and analytical methods for determination and analysis of the parameters of treatment facilities operation. To use the latest advances in science and technology in the area of small-scale wastewater treatment facilities, which are typical for rural settlements and agro-industrial enterprises, in these conditions it is proposed to use bioreactors and contact clarifying filters. As the research has shown, water quality indicators of purified water change during the time of water filtration Tf and depend on the velocity of water filtration Vf and a specific cleanings capacity of the filter: at the beginning their values decrease as a result of accumulation of active sludge in the subfilter space, and then they begin to rise due to the increase of hydraulic resistance to water motion and removing this residual matter into filtered water. The article also presents the results of investigations on changes in the content of organic compounds in filtered water during the filtration cycle Тf by the biochemical oxygen consumption value (BOCV) depending on a water filtration rate Vf, m/h, and the amount of active sludge (specific dirt content of the filter G, kg/m2), as well as the changes in the content of suspended matter Сf.i. due to the same parameters. The recommendations on the effective operation of wastewater treatment facilities of the proposed design that which ensure their reliable and high-performance operation, were developed.  

Assessment, monitoring, and regulation of odors of any origin in industrial enterprises

2020 ◽  
pp. 74-79
Author(s):  
Olga Malykh
Keyword(s):  
Public Health ◽  
Labor Protection ◽  
Industrial Enterprises ◽  
Junior Research ◽  
Research Associate ◽  
Urgent Task ◽  
Modern Methods ◽  
Treatment Facilities ◽  
Public Health Protection ◽  
Unpleasant Smell

Virtually any enterprise in the food and chemical industries, as well as in treatment facilities, has waste with a distinctive unpleasant smell. Elimination of odors is becoming an urgent task for ensuring safety and labor protection at enterprises, as well as public health protection. Olga Malykh, junior research associate at the company "Odor Laboratory N 1", speaks about the experience of smell research at enterprises, the possibilities of olfactometric research, and modern methods and equipment.

Marine-based waste stabilisation ponds: an evaluation of the hydraulic viability

2001 ◽  
Vol 43 (11) ◽  
pp. 283-290 ◽  
Author(s):  
R. Burrows ◽  
K. H. M. Ali ◽  
R. G. Tickell ◽  
T. S. Hedges ◽  
H. W. Pearson ◽  
...  
Keyword(s):  
Low Cost ◽  
Far East ◽  
Effluent Treatment ◽  
Scale Model ◽  
Waste Stabilisation Ponds ◽  
Coastal Cities ◽  
Site Evaluation ◽  
Treatment Facilities ◽  
The Third World ◽  
A Site

Marine-Based Waste Stabilisation Ponds, formed by floating boom/skirt curtain enclosures anchored in sheltered waters, have recently been proposed for provision of low-cost effluent treatment facilities where land availability is limited in rapidly expanding coastal cities in the Third World. This paper outlines findings from a viability assessment, which drew on a preliminary site evaluation and baseline environmental survey (for a site in sheltered waters in the Far East), laboratory studies involving scale model tests in wave/wind/current flumes, and a structural and design loading study. It focuses on hydraulic and hydrodynamic considerations and reports the study's conclusions.

The Treatment of Oil in Refinery Wastewater in South East Asia

1986 ◽  
Vol 18 (3) ◽  
pp. 17-21 ◽  
Author(s):  
R. A. Radevsky ◽  
D. A. Burt
Keyword(s):  
Pollution Control ◽  
Low Cost ◽  
Treatment Plant ◽  
Oil Industry ◽  
Effluent Treatment ◽  
Pollution Levels ◽  
Effluent Treatment Plant ◽  
Treatment Facilities ◽  
Correct Application

In response to more severe pollution control regulations and from a desire to reduce pollution levels, oil industry installations are having to re-examine their effluent treatment facilities. Options for upgrading the quality of effluent discharged include: improvements in water management to decrease volumes of effluent produced in processes; modifications to existing effluent treatment plant both in performance and operating procedures by the installation of new components or the replacement of individual units; and the installation of completely new effluent treatment facilities using the latest technology. In most existing plants considerable increases in efficiency can be brought about at relatively low cost by the correct application of a range of options. Where new installations are being constructed valuable lessons may be learned by examining the problems that are occurring in plants already in operation. Improvements may thus be made on existing designs.

scholarly journals Problems of previous local treatment wastewater of oil production and their effective solution

2021 ◽  
pp. 48-55
Author(s):  
Larysa Sablii ◽  
Veronika Zhukova ◽  
Lyudmyla Yepishova
Keyword(s):  
Organic Matter ◽  
Suspended Solids ◽  
Local Treatment ◽  
Experimental Studies ◽  
Oil Production ◽  
Treated Wastewater ◽  
Industrial Enterprises ◽  
Air Supply ◽  
Physico Chemical ◽  
Treatment Facilities

The technology of local wastewater treatment of oil production is presented. It based on the consistent use of physico-chemical treatment methods and allows to remove organic matter, suspended solids from wastewater to the requirements of regulations and divert treated wastewater into the municipal sewerage system. Wastewater generated during the processing of soapstocks, in terms of pollutants exceeds the standards set for wastewater when discharged into urban drainage systems. Therefore, before removal to municipal treatment facilities, they must be treated locally using physico-chemical and biological methods. In the phase-dispersed state, such wastewater is a stable emulsion. The presence of phospholipids, which are stabilizers of emulsions, complicates the phase separation of wastewater components. In addition, wastewater contains suspended particles, colloidal and dissolved substances of organic and inorganic nature. It was found that the highest values ​​of the effect of removal of organic matter by COD - 78% at the initial COD - 40000 mg / dm3, the effect of reducing the concentration of suspended solids - 72.5% at the initial 6300 mg / dm3 were obtained in the process of coagulation using Al2 (SO4)3 and subsequent flotation with air supply through porous materials. The technological scheme of local treatment of industrial wastewater is proposed. It includes the following main processes: averaging, aeration, alkalinization, coagulation, flotation, oxidation, filtration, adsorption. Experimental studies have shown the effectiveness of treatment of soapstocks in oil production using the proposed technology with bringing the quality of treated wastewater to current sanitary requirements, which allowed to recommend the technology of treatment of soapstocks for successful use in industrial enterprises of the oil industry.

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