UDC 628.212.2
DOI 10.35776/VST.2023.04.05
Grekov Mikhail, Elagin Sergei, Kozinets Galina, Chechevichkin Viktor, Leonov L. V., Klokov Aleksandr, Chechevichkin A. V., Iakunin L. A.
Experience of all-season use of FOPS®-K filter to remove debris from the surface runoff of a residential area
Summary
In residential areas that are places of residence and various activities of the population, a significant amount of solid materials of various origin and dispersion is formed that can be defined as debris (or municipal sweepings for roads). While interacting with atmospheric precipitation, this debris enters public wastewater disposal systems disrupting their operation («Rules for cold water supply and wastewater disposal»). To solve this problem, experimental studies were carried out to estimate possible removing debris from surface runoff using a FOPS®-K filter (basket type). The premises of the university campus was chosen as an experimental residential area where debris of biological, anthropogenic and technogenic origin accumulated. The results of testing FOPS®-K filter for two cycles (each for 12 months) showed that using the filter provided for removing not only large debris but also a significant part of the sand (3/4 of the total dry matter) from the surface runoff up to the size except 0.04 mm. It was established that all components of the debris captured by the filter contained 3–66.3 g/kg of oil products. During the tests, the debris was regularly removed from FOPS®-K filter (once every 3 months).
Key words
surface runoff , residential area , FOPS filter , debris removal
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UDC 628.212.2
DOI 10.35776/VST.2024.01.07
Leonov L. V., Grekov Mikhail, Iakunin L. A., Elagin Sergei, Klokov Aleksandr, Chechevichkin A. V., Triaskin Mikhail
Experience of all-season use of FOPS® filter with natural zeolite for the treatment of surface runoff from technologically disturbed territories
Summary
The aspects of pollution of surface runoff from residential areas with heavy metals is considered, and the main sources of their inflow are described. The results of full-scale tests of FOPS®-Z filter (with natural zeolite media) are presented. The efficiency and level of heavy metals removal from surface runoff using the FOPS®- Z filter was estimated. Tests were carried out on a real residential area in St. Petersburg for seven seasons (2021–2022). The results of using FOPS®-K filter basket (installed upstream of FOPS®-Z filter) at the first stage of purification of surface runoff from the residential area are presented, as well as the results of a study of the fractional composition of wastes accumulated in the FOPS®-K filter basket for the entire period of testing.
Key words
cleansing , surface runoff , heavy metals , FOPS filter , filtering cartridge , coefficient of variation
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UDC 628.212.2:628.316
DOI 10.35776/VST.2024.05.04
Glukhov Vladimir, Chechevichkin Viktor, Triaskin Mikhail, Chechevichkin A. V., Iakunin L. A.
Experience in the treatment of surface runoff of complex composition using multi-stage units based on FOPS® filters
Summary
Many years of experience in keeping track of the composition of surface runoff from various residential areas are described. An estimation was made of the actual contamination of surface runoff generated in the territories of tangible objects. The results of full-scale tests and practical operation of multi-stage units on the basis of FOPS® filters at various districts of St. Petersburg with heavily polluted surface runoff of a complex composition are presented. The actual composition of surface runoff from technogenic residential areas experiencing high traffic load differs significantly from the recommendations of current regulatory and technical documents. The sorption-filtration technology implemented with FOPS® filters has been a most technically developed technology that provides for designing multi-stage units for the integrated treatment of surface runoff.
Key words
surface runoff , FOPS filter , filtering cartridge , multi-stage unit , combined treatment , street and road network , premises
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DOI 10.35776/VST.2022.04.06
UDC 628.212.2/.316
Grekov Mikhail, Elagin Sergei, Kozinets Galina, Chechevichkin Viktor, Leonov L. V., Klokov Aleksandr, Chechevichkin A. V., Iakunin L. A.
Test operation of a two-stage plant based on FOPS® filters
for the enhanced treatment of surface runoff
Summary
Moto transport has been the main source of pollution of surface runoff in large cities; therefore, runoff from roads and car parking spaces must be subjected to enhanced treatment including several stages. As part of solving this problem, works were carried out to estimate the operation of a two-stage plant (based on sequentially operating FOPS®-S and FOPS®-MU filters) in the process of surface runoff treatment from the car parking spaces during various seasonal changes. As a result of test experiments, it was found that for 21 months the plant provided for 98–99% efficiency of removing suspended solids and 94–97% efficiency of removing oil products from the surface runoff. After three years operation including winter periods with below-zero temperatures to less than –20°C, the plant provided for the required treatment level according to the monitored parameters. Occasionally, the FOPS®-S filter was cleaned – removing suspended solids and oil products.
Key words
cleansing , suspended substances , oil products , surface runoff , FOPS filter , car parking
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DOI 10.35776/VST.2021.02.04
UDC 628.212.2/.316
Leonov L. V., Grekov Mikhail, Chechevichkin A. V., Iakunin L. A., Elagin Sergei, Kozinets Galina
Test operation of a FOPS®-S filter separator in the process
of surface runoff purification from the car parking area
Summary
Surface runoff from large metropolitan areas is heavily polluted. Car parking areas are of overriding concern in pollution since the surface runoff generated on them contains high concentrations of oil products and suspended solids. The aim of the project was multi-season test operation of a FOPS®-S filter-separator for the purification of the surface runoff disposed into the sewer system from the parking area. In the course of observations, it was found that over 21 months of testing, the FOPS®-S filter provided for removing
82–99% suspended solids and 55–76% of oil products from heavily contaminated surface runoff (at their maximum concentration in the surface runoff 3000 and 10.5 mg/dm3, respectively). No decrease in the treatment efficiency was observed for 21 months, including the periods of negative temperatures (two seasons). During the tests the hydraulic discharge of the trapped pollutants from the FOPS®-S filter was carried out twice: suspended solids (~ 130 kg) and oil products (~ 2.1 dm3).
10,5 мг/дм3 соответственно). Снижения эффективности очистки в течение 21 месяца не наблюдалось, в том числе в периоды отрицательных температур (два сезона). За время испытаний из фильтра ФОПС®-С дважды производилась гидровыгрузка задержанных загрязнений: взвешенных веществ (~ 130 кг) и нефтепродуктов (~ 2,1 дм3).
Key words
cleansing , suspended substances , oil products , surface runoff , FOPS filter , filtering cartridge , car parking
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