Analysis of the time series of waste water quality at the inflow of the wastewater treatment plant and transfer functions

Title:

Analysis of the time series of waste water quality at the inflow of the wastewater treatment plant and transfer functions

Creator:

Nesmerak, Ivan and Blazkova, Sarka D.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:9e7eb981-81c7-4650-8761-eb01c9a8ff23
uuid:9e7eb981-81c7-4650-8761-eb01c9a8ff23
doi:10.2478/johh-2014-0009

Subject:

analysis of time series, wastewater treatment plant, inflow and outflow, concentrations and pollution loads, and transfer functions

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

Time series of the daily total precipitation, daily wastewater discharges and daily concentrations and pollution loads of BOD5, COD, SS, N-NH4, Ntot and Ptot were analyzed at the inflow to the wastewater treatment plant (WWTP) for a larger city in 2004-2009 (WWTP is loaded by pollution from 435,000 equivalent inhabitants). The time series of the outflow from a WWTP was also available for 2007. The time series of daily total precipitation, daily wastewater discharges, concentrations and pollution loads at the inflow and outflow from the WWTP were standardized year by year to exclude a long-term trend, and periodic components with a period of 7 days and 365 days (and potentially also 186.5 days) were excluded from the standardized series. However, these two operations eliminated only a small part of the variance; there was a substantial reduction in the variance only for ammonium nitrogen and total nitrogen at the inflow and outflow from a WWTP. The relationship between the inflow into a WWTP and the outflow from a WWTP for the concentrations and pollution loads was described by simple transfer functions (SISO models) and more complicated transfer functions (MISO models). A simple transfer function (SISO model) was employed to describe the relationship between the daily total precipitation and the wastewater discharge.

Language:

Slovak

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Coverage:

55-59

Source:

Journal of hydrology and hydromechanics | 2014 Volume:62 | Number:1

Harvested from:

CDK

Metadata only:

false