IS SLUDGE WATER DILUATE STREAM FROM ELECTRODIALYSIS SUITABLE FOR AGRICULTURAL PURPOSES?

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27350%2F18%3A10239675" target="_blank" >RIV/61989100:27350/18:10239675 - 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

IS SLUDGE WATER DILUATE STREAM FROM ELECTRODIALYSIS SUITABLE FOR AGRICULTURAL PURPOSES?

Original language description

Sludge water, a product of drainage of primary and activated sludge from the municipal wastewater treatment process, is rich in nutrients, particularly nitrogen and phosphorus. Nitrogen and phosphorus are inorganic biogenic substances suitable for plant nutrition. Sludge water can be treated via electrodialysis. This process leads to two products, one is a diluate stream (solution less concentrated than the input, contains some nutrients) and the other is concentrate stream (solution in which nutrients are concentrated against the input). There is abundant research in nitrogen and phosphorus recovery from the concentrate stream, for example in the form of struvite used for fertilizing. However, little attention has been paid to the huge volumes of diluate stream. The diluate stream can be used in agriculture as water suitable for irrigation, where the bonus of this product is a partial fertilizing capacity. This way, wastewater can be used for irrigation and fertilizing having subjected the wastewater to agrochemical analyses. An important condition for the use of sludge water or diluate stream for irrigation is the absence of heavy metals and toxic substances. Still, if the water contains heavy metals, they can be removed with a relatively high success, for example by precipitation. Using wastewaster as water for agricultural purposes for irrigation is one of the new options to find new secondary sources of water. This theme is highly topical as it is important to reduce the consumption of quality water resources. These must primarily serve for drinking purposes, and therefore it is necessary to search for alternative water resources.

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

20701 - Environmental and geological engineering, geotechnics

Project

<a href="/en/project/LO1406" target="_blank" >LO1406: Institute of clean technologies for mining and utilization of raw materials for energy use -Sustainability program</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2018

Confidentiality

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

Article name in the collection

V4 Wastes: Critical Raw Materials : workshop : 31.5.-2.6.2018, VŠB - Technical University of Ostrava, Faculty of Mining and Geology, Czech Republic

ISBN

978-80-248-4180-9

ISSN

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e-ISSN

neuvedeno

Number of pages

5

Pages from-to

11-15

Publisher name

VŠB - Technical University of Ostrava

Place of publication

Ostrava

Event location

Ostrava

Event date

May 31, 2018

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

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