Technological process of recycling nitrogen and phosphorus using an integrated station for flocculants dosing and geotextile bags.

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F25173154%3A_____%2F17%3AN0000042" target="_blank" >RIV/25173154:_____/17:N0000042 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Technological process of recycling nitrogen and phosphorus using an integrated station for flocculants dosing and geotextile bags.

Original language description

Currently, more than 50% of arable land in the Czech Republic is under the risk of soil erosion. The gradual loss of soil particles rich in nutrients and the decrease of soil organic matter causes a soil fertility reduction. The Czech landscape is rich in fishponds and fishpond systems. Fishponds have naturally a high potential of nutrient retention (especially phosphorus). Within this process, fishpond sediments, where the substance in question accumulate, play the key role. An interesting opportunity could be the application of fishpond sediment, mostly containing high amount of nutrients and organic matter, back on fields. The main task of this paper is to introduce a trial study of possible technological process of nutrient recycling from the fishpond sediment using suction dredger and geotextile bags. This method proved to be very effective – compounds usable in agriculture production were retained efficiently. Water from the geotextile bags that entered back the pond represented only one potential risk – high concentrations of N-NH4 (20-30 mg l 1), but the effluent was sufficiently diluted by the fishpond waters. After 31 days, the sediment was applied on the experimental field – a 6 cm thick layer contained by an order of magnitude more nutrients (N, P, K) than is usually applied. We assume that a slowly proceeding transformation of nutrients in compounds takes place and is available to vegetation during vegetation season. The project continues focusing on soil fertility characteristics and crop in next two years.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

40103 - Fishery

Project

<a href="/en/project/TA04020123" target="_blank" >TA04020123: Technological process of recycling nutrients from the fishpond sediments using suction dredger, integrated station for flocculant dosing and geotextile bags for local application in micro-catchment</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

10th International Workshop on Nutrient Cycling and Retention in Natural and Constructed Wetlands

ISBN

978-80-905483-3-6

ISSN

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e-ISSN

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Number of pages

5

Pages from-to

53-57

Publisher name

ENKI, o.p.s.

Place of publication

Třeboň

Event location

Třeboň

Event date

Sep 21, 2017

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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