Ocena wariantów segregacji odpadów komunalnych "u źródła" z wykorzystaniem analizy decyzyjnej AHP

Risk assessment in municipal wastewater treatment plant

“…The choice of measure depends primarily on the availability of input data, their number and reliability, selected for estimating risk parameters and expected output values. Therefore, you can distinguish [14,15,17,18]:…”

“…The mentioned act defines the conditions of sewage disposal -the highest acceptable values of selected indicators or the minimum percentage of contamination reduction and the maximum number of samples that do not meet these requirements. These are immission criteria, the fulfilment of which ensures that discharged sewage will not cause contamination of the receiver [14,15].…”

“…The following risk tolerance levels are distinguished [14,15,18]: • low risk (acceptable) -is perceived as not relevant to the overall functioning of the facility, does not require special security measures, • medium (tolerated) risk -conditionally acceptable risk, when the costs of risk reduction are disproportionately large to the possibility of reducing losses, • high risk (unacceptable) -is directly related to the occurrence of threats to the environment, health and human life, requires immediate action and reduction of risk regardless of the cost. The risk acceptability should be applied to the previously obtained risk map (Fig.…”

“…In the case of municipal sewage treatment plants, have been made attempts of modelling risk, e.g. [13], and few studies on its management also can be found [14,15]. On this basis, the authors of the paper attempt to analyze and assess the risk of municipal sewage treatment plants based on real operational data.…”