The Evaluation of Stormwater Runoff Pavir ini nuotek kiekio vertinimas

Conventional wastewater flow measurement techniques are difficult to apply for stormwater runoff. Therefore, a strong need for the new types of flow measurements is foreseen, especially in the existing urban areas. Water level was measured applying a hydrostatic level meter and flow was calculated according to typical hydraulic relationship. The theoretical flow rate was calculated based on rain gauge data from the nearest metrological station. Following gauge data, the calculated storm water runoff was almost two times higher than the measured one. Differences in flow data will lead to uncertainties in statistical reports and misunderstanding between different authorities. The measurements of storm water flows are necessary, because they are associated with emission accounts, taxes on pollution and improvements to environmental quality. Article in Lithuanian Standartiniai buitini nuotek debito matavimo būdai sunkiai pritaikomi pavir in ms nuotekoms d l dideli debit svyravim , gausaus skendin i j med iag kiekio, elektros tiekimo nebuvimo ir vietos trūkumo esamose sistemose. Tod l ie koma nauj būd ir alternatyv , kaip būt galima i matuoti pavir ini nuotek debit , ypa urbanizuotose teritorijose. Pavir ini nuotek debit alyje fakti kai nematuojama, o nuotek kiekis apskai iuojamas teorin mis formul mis. Darbo tikslas buvo palyginti vieno i pavir ini nuotek baseino faktin i matuot debit su apskai iuotu pagal galiojan i standartin metodik . Pavir ini nuotek debitas buvo matuojamas naudojant hidrostatin lygio matuokl , o teorinis debitas apskai iuotas pagal artimiausios metrologin s stoties kritulma io duomenis. Apskai iuotas pavir ini nuotek kiekis gautas beveik du kartus didesnis, nei i matuotas. Būtina tobulinti esam pavir ini nuotek debito skai iavimo metodik , nes tai susij su ter al apskaita, mokes iais u tar ir aplinkos kokyb s gerinimu.