Constructed wetland in Vidrare, Bulgaria

General

National Id:

Bulgaria_06

Site name:

St. Panteleimon Home for children, Vidrare

Summary:

The Women in Europe for a Common Future (WECF), implemented the first constructed wetland in Vidrare, Pravetz, Bulgaria, for on-site treatment of domestic waste water of a children's home combined with capacity building for professionals.

NUTS Code:

Югозападен (Yugozapaden)

RBD code:

BG1000

Transboundary:

Data provider:

REC

Source(s):

Constructed Wetlands Sustainable Wastewater Treatment for Rural and Peri-Urban Communities in Bulgaria

Constructed Wetland in Bulgaria - Constructed Wetland Implementation for On-site Treatment of Domestic Wastewater of a Children´s Home combined with Capacity Building for Professionals

NWRM(s) implemented in the case study:

Wetland restoration and management

Longitude:

24.01

Latitude:

42.99305

Site information

Climate zone:

warm temperate moist

Mean rainfall:

507

Mean rainfall unit:

mm/year

Average temperature:

Average imperviousness:

100

Type:

Case Study Info

Light or indepth?:

Light

Average slope range:

5.0

Monitoring maintenance

Monitoring impacts effects:

Monitoring location:

Laboratory

Performance

Performance impact estimation method:

Edge of Field/Plot

Performance impact estimation information:

Difference between samples in inflow and outflow

Biophysical impacts

Retained water:

272

Retained water unit:

m3/month

Increased water storage:

272

Increased water storage unit:

m3/month

Water quality overall improvements:

Positive impact-WQ improvement

Soil quality overall soil improvements:

Not relevant for this application

Lessons, risks, implications...

Key lessons:

Small scale constructed wetland for water treatment could be good demonstration of specific type of NWRM with direct economic and water quality benefits. Constructed wetlands are so far rarely used in spite of the successful pilot tests.

Financing difficulties:

Success factor(s):

Type	Role	Comments
Financing possibilities	main factor	In rural areas, there is a lack of financial, technical and staff resources, thus low-tech, cost-efficient and sustainable wastewater management systemas are needed
Attitude of relevant stakeholders	secondary factor

Financing:

Type	Comments
Other	German Federal Environment Foundation

Barrier:

Driver:

Type	Role	Comments
Organisation committed to it	main driver	WECF NGO

Socio-economic

Costs investment:

45000

Costs operational information:

The operation and maintenance costs depends on the local cost of energy and staff. Require time and energy supply: time 1.5h/week; energy 2kWh/d; sludge disposal 36m3/yr

Costs total:

45000

Costs total information:

Investment costs: excavation and piping(12000), per-treatment step (6000); Soil filter: liner(6000), grave and sand(7000), pipes (9500), pumps (4500)

Ecosystem improved biodiversity:

Ecosystem provisioning services:

Ecosystem water supply:

Ecosystem impact climate regulation:

Not relevant for the specific application

Ecosystem erosion control:

Policy, general governance and design targets

Policy description:

Ground water contamination due to untreated sewage discharge

Part of wider plan:

Policy pressure:

Policy requirement directive:

Policy impact:

Policy wider plan:

Policy area:

Policy target:

Target purpose
Pollutants Removal

Design & implementations

Application scale:

Building

Installation date:

2011-04

Performance timescale:

< 1 year

Area subject to Land use change or Management/Practice change (ha):

0,0399999991059303

Size:

0,0659999996423721

Size unit:

Max water retention capacity:

Max water retention capacity unit:

m3/day

Constraints:

Presence of many underground cables and pipes, which had not been mentioned in previous documentation.

Favourable preconditions:

Existing sewerage, gully and river as receiving water, slope in the yard and available space

Outflow volume:

Outflow volume unit:

m3/day

Public consultation:

Design contractual arrangement:

Design consultation activity:

Activity stage	Name	Key issues	Comments
	Seminar		November 19th, 2010; 25 particiapsnts; 'Related to the construction of the first constructed wetland in bulgaria
	National Conference		April 29th, 2011 in Gran Hotel Sofia; Presenting constructed wetlands as a sustainable and cost-effective wastewater treatment system

Design land use change:

Design authority:

Authority type	Role	Name	Comments
NGO	Initiation of the measure	Women in Europe for a Common Future (WECF)	International ONG
Local water authority	Initiation of the measure	Pravets Municipality	Co-funding
	Initiation of the measure	Ecoworld 2007 of Bulgaria
	Determination of design details of the measure	Otter Wasser	Also instruction of staff for the maintenance of the constructed wetland
NGO	Financing	German Federal Environmental Fundation

Last updated: 12 Jan 2015 | Top

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Constructed wetland in Vidrare, Bulgaria

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