Joint Ipoly/Ipel Catchment Management HUSK/1101/2.1.1/0153
Implementation of water quality monitoring Dr. Adrienne Clement
[email protected]
Budapest University of Technology and Economics Department of Sanitary and Environmental Engineering
Tasks related to project activities 1. Implementation of water quality monitoring for better knowledge of the water bodies • Focus on the smaller water courses • Gap analyses in order to select water bodies and paremeters • Chemical and physico-chemical elements + BQS 2. Supporting wastewater strategy development • Detection of point sources (urban and industrial WWTPs) • Evaluation of water quality impacts • Data collection in order to supply water quality model Subcontracting (NEKI - KSZI – BME) Implementing period: 20.09.2013 – 31.10.2013.
Sampling sites in the Hungarian Ipoly catchment
Water quality measurements Physico-chemical elements: pH conductivity DO BOD5 CODcr NH4-N NO2-N and NO3-N Organic N Cl PO4-P and TP
MSZ 448-22:1985 MSZ 448-32: 1977 MSZ EN 25814:1998 MSZ EN 1899-2:2000 MSZ 448-20:1990 MSZ ISO 7150-1:1992 MSZ 1448-13:2009 MSZ EN 25663:1998 MSZ 1448-15:2009 MSZ 1448-13:2009
Dangerous substances: Toxic metals (Hg, Pb, Cr, Ni, Cu, Cn, Cr, As) MSZ EN ISO 17294-2:2005 Pesticides WBSE-47: 2009
Biological quality elements
Water body Börzsöny- és Hosszúvölgyi-patak Csitári-patak alsó Csitári-patak felső Damásdi-patak Darázsdói- és Lóci-patak Derék-patak és mellékvizei Dobroba-patak-alsó Dobroba-patak és mellékvizei Fekete-víz alsó Fekete-víz felső és mellékágai Ganádi-patak Hévíz-patak Kemence-patak Kétbodonyi-patak Letkés-patak Lókos-patak-felső és Jenői-patak Lókos-patak Ménes-patak-felső és Nógrádmegyeri-patak Ménes-patak (Ipoly-vízgyűjtő) Nyerges-patak (AEP846) Nyerges-patak (AEP847) Szakáli-patak Szentlélek-patak Komra-patak
Number of measurements
Phytho- Phythoplankton benthon
Aquatic macrophyta
X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X
X
X
X X X X X X
X X X X X X
X
24
24
10
X X X X X X
X X
X
Benthic invertebrates
Fish
X X X X X X X X X X X X X X X X X
X X X X X
X
X
X X X X X X
X X X X X X
24
21
X X X X X X X X X
Monitoring for model supply – approach: Steady state conditions Typical low flow (low dilution for point sources, reduced diffuse load) Simultaneous measurements of river discharge, upstream and downstream water quality and emission from point sources Two type of investigations: • Measuring longitudinal profiles (Ipoly and its first order tributaries) • 48 hours measurement to examine changes over time (one selected significant point source and receiving water body)
Measuring longitudinal profiles:
08-16. October, 2013
Sampling sites:
Ipoly (Balassagyarmat) Qmeasured = 1.9 m3/s
Q10% (1961-2003) = 3.76 m3/s Qmin (1961-2003) = 0.048 m3/s
Ipoly/Ipel: 11 cross sections 26 sites of 6 tributaries 17 samples from WWTP effluents (15 urban + 2 industrial)
Salinity Average {Cloride, conductivity} Less than good Good status Excelent status WWTP effluent
Water quality classification based on physico-chemical elements in aggreement with 10/2010 VM Ministerial Decree
Nutrients Average {NO3-N, TN, PO4-P, TP} Less than good Good status Excelent status WWTP effluent
River monitoring site E = Q*C
Contribution of WWTP effluents to measured river load (%) without decay (river retention was neglected) Tributary
Discharge Inorg N
PO4-P
Total P Cloride BOD
Dobroda-p
11,2
76
86
95
15
68
Ménes-p
2
26
128
40
6,4
7,3
Szentlélek-p
30
79
96
57
84
240
Feketevíz
30
57
109
117
92
70
Lókos-p
16,3
69
68
63
31
296
Derék-p
24
59
114
11,2
59
59
48 hours sampling: Szécsény WWTP – Szentlélek creek
Sampling sites 1. 2. 3. 4. 5. 6.
Ipoly upstream to Szentlélek creek Szentlélek patak upstrea to WWTP Szécsény WWTP effluent Szentlélek creek downstream, 0.7 km Szentlélek creek downstream, 2.2 km Ipoly downstream to Szentlélek creek
Szentlélek Creek, discharge
Q = 45 l/s
Diurnal changes: concentration pattern after normalization
Impact of ww. discharge on water quality: 1st order decay model
Mean ± StDev
Summary and conclusions • •
•
Monitoring program was executed successfully, Significant improvement of knowledge (longitudinal profile, diurnal variations, impact of wastewater emission on water quality and its contribution to river load), But uncertainties remained (sampling problems, deviation from steady state conditions, analitical error).
Thank you for your attention!
