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Transport zeroemisyjny dla branży komunalnej

100%

Ciuła J.

tom nr 7

53--57

Zakup i eksploatacja pojazdów elektrycznych w bieżącej działalności firm działających w branży komunalnej, stanowi wdrożenie zasad transportu zeroemisyjnego, co nabiera szczególnego znaczenia w przypadku wykorzystania własnej energii elektrycznej wytworzonej w źródle odnawialnym, jakim jest biogaz składowiskowy.

Modelling the migration of anthropogenic pollution from active municipal landfill in groundwaters

100%

Ciuła J.

2021

tom Vol. 14, no. 2

81--90

Landfill requires a systematic monitoring of its impact on groundwater and surface waters. The paper presents the modeling of pollution migration for cases when leachate penetrates the aquifer layer. For this purpose, a conceptual hydrodynamic model of the aquifer was developed in the program Visual ModFlow Pro, which is a spatial two-layer model. Chloride ion was used as an indicator defining the rate of pollution migration. The results of calculations and modeling of pollution migration in soil-water conditions demonstrated that it is practically impossible for pollutants to penetrate the aquifer, since a sufficient protection is provided by artificial insulation and a layer of sandy clays. A potential pollution migration to groundwater can only occur after a rupture - damage to the insulation layer. In such a case, vertical infiltration will be taking place in the 4aeration zone for a relatively long period, while the migration of pollutants already in the saturation zone (hydrated) will be taking place at a relatively high speed.

Analysis of the effectiveness of wastewater treatment in activated sludge technology with biomass recirculation

100%

Ciuła J.

tom Vol. 15, no. 2

123--134

In the operation of a wastewater treatment plant, the key challenge for the operator is to obtain parameters of the treated wastewater required by relevant legal acts. Meeting these requirements is possible through the use of an appropriate technology and real-time automation of control and monitoring processes. The paper examines the results of laboratory tests of selected wastewater parameters in terms the content of organic substances and nutrients in order to determine the efficiency of wastewater treatment in a biological bioreactor using the sludge recirculation process. The performed analysis demonstrated that all levels involving the reduction of pollutants, concentrations and load are in compliance with the applicable legal requirements. Ensuring a continuous monitoring of the quality of treated wastewater and the optimization of this process is crucial for the aquatic environment and human health.