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    Wyświetlanie 1-2 z 2
    Tytuł:
    Wastewater reuse and mapping of irrigable soils: Case of Sidi Bel Abbes City, Algeria
    Autorzy:
    Mahfoud, Zakaria
    Khaldi, Abdelkader
    Korichi, Khaled
    Powiązania:
    https://bibliotekanauki.pl/articles/293066.pdf
    Data publikacji:
    2020
    Wydawca:
    Instytut Technologiczno-Przyrodniczy
    Tematy:
    bacteriology
    physico-chemical parameters
    reuse
    soil
    Sidi Bel Abbes City
    wastewater
    wastewater treatment plant (WWTP)
    Opis:
    This work aims to evaluate the treated wastewater from the activated sludge treatment plant in the City of Sidi Bel Abbes (North-Western Algeria) which is required for reuse in irrigation. The control of irrigated areas downstream is done based on a pedological study. Physico-chemical analysis such as (pH, BOD5, COD and SS) indicate results in Algerian and international standards required by the WHO. The Sodium Adsorption Ratio and Electrical Conductivity values of the treated wastewater belong to the C3-S1 class. The treated wastewater has a fairly good microbiological quality that meets Algerian standards. The helminth eggs are practically absent. The concentrations of heavy metals are much lower than the limits prescribed in the Algerian decrees. Therefore, the overall processing plant efficiency is satisfactory and has the characteristics of a good treated water quality for reuse in the field of irrigation while protecting the environment. The pedological study of the soil samples shows that the most dominant fraction is undeveloped calcimagnetic. The planned irrigation plain covers an area of about two thousand hectares. Depending on the crops to irrigate; the development and nature of the necessary or recommended improvements, the proposed irrigation perimeter could be classified into five categories in which only three categories are irrigable. Water projects have been proposed to ensure the irrigation of three subdivided sectors.
    Źródło:
    Journal of Water and Land Development; 2020, 46; 153-161
    1429-7426
    2083-4535
    Pojawia się w:
    Journal of Water and Land Development
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Efficiency of wastewater purification in medium sand with a lightweight expanded clay aggregate assisting layer
    Autorzy:
    Kalenik, Marek
    Wichowski, Piotr
    Chalecki, Marek
    Kiczko, Adam
    Powiązania:
    https://bibliotekanauki.pl/articles/27312642.pdf
    Data publikacji:
    2023
    Wydawca:
    Instytut Technologiczno-Przyrodniczy
    Tematy:
    domestic wastewater infiltration drainage
    domestic wastewater purification
    individual wastewater treatment plant
    individual WWTP
    lightweight expanded clay aggregate
    LECA
    soil bed
    Opis:
    The objective of this experimental study was to examine whether an assisting layer of lightweight expanded clay aggregate (LECA) of the granulation 1-4 mm, introduced into a subsoil, is able to improve an efficiency of removal of total nitrogen and total phosphorus from domestic wastewater. In the investigations, an assisting 0.10 and 0.20 m thick LECA layer was applied. It has been observed that the effectiveness of removal of total suspended solids (TSS), total nitrogen and total phosphorus from wastewater as well as the level of biochemical oxygen demand (BOD5 ) and chemical oxygen demand (COD) is in accordance with the Polish standards on wastewater disposal into grounds and surface water. The performed experiments showed that the effectiveness of raw wastewater purification for the medium sand soil bed with the 0.20 m thick assisting LECA layer is higher than for the 0.10 m thick assisting layer. In the medium sand soil bed with the 0.20 m thick assisting LECA layer, the removal efficiency regarding total nitrogen increased by 20.6%, total phosphorus by 5.2%, ammonium nitrogen by 8.8% and TSS by 5.3%, and reduction efficiency regarding BOD5 increased by 1.7% and COD by 2.3% with relation to the 0.10 m thick assisting LECA layer (all percentages - in average). The results of the experiment showed that the LECA with the granulation 1-4 mm can be used to assist in removal of total nitrogen and total phosphorus from wastewater with application of infiltration drainage.
    Źródło:
    Journal of Water and Land Development; 2023, 57; 30--38
    1429-7426
    2083-4535
    Pojawia się w:
    Journal of Water and Land Development
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-2 z 2

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