NuReDrain: Nutrient Removal and Recovery from Drainage Water - … · 2019-02-03 · NuReDrain 2...

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Els Pauwels

NuReDrain: Nutrient Removal and Recovery from Drainage Water

© Almeria | NuReDrain, Fertinnowa, 3-5 October 2018

NuReDrain

2

• Nutrient Removal and Recovery from Drainage water

Interreg project North Sea Region

– NSR = intensive farming area

– Nutrient (N + P) input from land to rivers, lakes, coastal zones

– Eutrophication: less oxygen, less water quality, less aquatic biodiversity, toxins

– Affects drinking water production

© Almeria | NuReDrain, Fertinnowa, 3-5 October 2018

• Actively remove N and P in agricultural (waste)waters

Adsorption on filters

- Drainage discharges (low N and P, discontinuous)

- Greenhouse effluent (high N and P, small volume)

- Surface water (low N and P, big volume)

Project goals


• Recover P from filter materials and reuse it as fertilizer

Project goals


• Recover P from filter materials and reuse it as fertilizer

• Advise to growers to lead to a better quality of surface water

• Measure the impact in 2 catchment areas in the NSR

• Provide implementation guidelines for the NSR

1/03/2017 – 30/09/2020 (= 42 months)

Project goals

Universities and research stations

6© Almeria | NuReDrain, Fertinnowa, 3-5 October 2018

• Production filtermaterial (DiaPure (P) and Zero valent iron (N))

• Modelling: impact filtersystems on ecosystem

• N and P-removal: lamel-filter (sediment + P) + cocoschips

• Database characteristics available P-filter materials• MBBR: N-removal• ICS: P-removal

• N-removal: follow up filter techniques drainage discharges in open field

• Production filter materials • Study of available filter materials

Practical research in agri- and horticulture


• Fieldtrials: open field and container

• Field demonstrations Dümmer-lake• P-filtersystems for drainage water of agriculture

=> Vulgarisation of knowledge to agri-and horticulture

• Filterinstallations (N en P- removal)

• Fieldtrials: azalea and nursery stock

Drinking water companies


• Drink water production De Blankaart (West-Flanders).

• Testing 3 filters with as filtermaterial: ICS and Vito A and Vito B

• Oldenburgische-Ostfriesische Wasserverband

• Drinkwaterproduction Nedersaksen

• Field demonstrations on the river Lethe

Selection of filtermaterials

Identification of suitable filter materials and filter configurations for the removal of P @ 3 concentration levels

High nutrient loaded waste streams: 25 mg PO4-P/L and - KU Leuven

Low nutrient loaded waste streams: 0.5 mg PO4-P/L - UGent

Medium nutrient loaded waste streams and discontinuous flows 5 mg PO4-P/L - VITO

© Almeria | NuReDrain, Fertinnowa, 3-5 October 2018 9

Selection of filtermaterials


Adsorption capacity, price, availability, desorption-characteristics

Screening/selection of 11 filter materials → 4

FerroSorb Redmedite ICS LiDonit BaseLith Vito sorbent A

DiaPure Phoslock

• PO4-P solution: 0.5 ppm P

• Bed height: 14 cm corresponds with a bed volume of 150 mL

• Temperature: 20 °C, Flow rate: 0.66 L/24 h

• Downscale industrial filter application handling 4.4 m3 of water per day and per m3

filter material = slow filtration rate

• Materials: ICS, Diapure, Redmedite, BaseLith, LiDonit, Vito A, Vito B, LDH, FerroSorp

•

P-removal – column tests

• 0.5 ppm P: Breakthrough curves Breakthrough point is reached

Influent P concentratie

Effluent P concentratie

P-removal – column tests

40% N- removal

60% N-removal

N-removal from run off water (Denmark)

Field demonstrations: drainage water - DK

P-removal from drainage water (Denmark)

50% P- removal

Field demonstrations: drainage water - DK

P-removal from drainage water (Belgium)

90% P- removal

Field demonstrations: drainage water - BE

Collector

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Percolation reed bed (30 m²)

Storage pond (120 m³)Root zone reed bed (55

m²)

Time switches Flow meters

P filters (ICS) P filters (pellet) Disposal of filtered water (analysis)© Almeria | NuReDrain, Fertinnowa, 3-5 October 2018

Field demonstrations: greenhouse effluent- BE

OR

N-removal at PCS – Constructed wetland


40% N- removal

N-removal at PCS – MBBR (KUL)


P-removal at PCS – ICS grains and pellets


Pellets

ICS grains

95% P- removal

P-removal at PCS – ICS grains and pellets


0.0

5.0

10.0

15.0

20.0

25.0

Storage pondICS granulesPelletsP

(m

g/l

)

P-removal at floristry Meuninck


90% P- removal

NuReDrain Video: www.pcsierteelt.be

N en P-removal from greenhouse effluent (Belgium)

Field demonstrations: greenhouse effluent- BE

P-removal from buffer basin for drinking water production (Belgium)

Field demonstrations: drinking water production BE

P-removal form drainage water (Germany)

setup drainage filter system for field demonstrations

o exchange battery/ bottles: 7-10 dayso trafficability has to be ensured (field/bank)

drain: 1.00 -1.30 m below surface

filter height:min. 0.50 m

max. 0.25 m

+P -P

(P)P(P) P

(P)

P

P P

(P)

(P)gravel filterICS

coconut mat

Field demonstrations: drainage water - D

P-filter shaft: installation of pre-filter

Field demonstrations: drainage water - D

• North-Western Germany

• River length: 36.5 km

• Catchment area: 180 km²

• Sum fish pond area: 120 ha

• Area nature reserve: 465 ha

• No continuity between

Upper- and Lower-Lethe

2

a)

b)

Field demonstrations: river water - D

P- removal

Field demonstrations: river water

• Wood chips as C-source for denitrification

• Retention time around 8h

• Increasing efficiency with increasing N-

concentrations

- 60-80% NO3 removal

• 9-10 years until re-filling with wood chips

• Depth: 1.20m + 1.30m (depth of pre-existing

drainage pipes)

• Construction costs: 60,000€ for two plants

- One big and one small

- Area of big plant: 180m²

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Nitrate removal and Nitrogen recovery from Agricultural Drainage Water using a filter system

based on Zero-Valent Iron and Zeolite - DK


28/05/2018 13/06/2018 18/06/2018

17/07/2018 30/07/2018 03/08/2018

09/08/2018 13/08/2018 04/09/2018

P-recovery and re-use



• Start trial: 15/05/2018

• 30% ICS added – evaluation after 4 weeks (14/06/2018)

left without ICS – right with ICS



• Evaluation at end of trial (16/07/2018)

left without ICS – right with ICS

Modeling of the impact of filter techniques

Doel: Impact of reduction measures on N and P losses in drained catchments

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Examples

% reductie

N 0 % 40 % 5 %

P 70 % 0 % 20 %

P-Filter CW Buffer strips

Overall reductionN: 20 %P: 35 %


Modeling of the Kemmelbeek


Impact of example:• P Filter Box

• Constructed wetlands

• Buffer strips

• Results of the P Filter Box and other measures will be upscaled to the Warnow basin

• Overall load reduction for N and P will be estimated at catchment scale

Modellering van de impactModeling of the impact of filter techniques


Targeted regulation of nitrogen in Denmark

implementation of measures to reduce drainage nutrient losses

Met steun van

• Interreg North Sea Region

• Province of West-Flanders, East-Flanders and Antwerp

Sponsors

Visit our website www.pcsierteelt.beFollow PCS on LinkedIn proefcentrum-voor-sierteelt

Any questions?

E:[email protected]

mailto:[email protected]

NuReDrain: Nutrient Removal and Recovery from Drainage Water - … · 2019-02-03 · NuReDrain 2...

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