Emitter clogging characteristics under reclaimed wastewater drip irrigation: a meta‐analysis

2022 ◽  
Author(s):  
Xufei Liu ◽  
Lin Zhang ◽  
Xuefei He
Keyword(s):  
Drip Irrigation ◽  
Meta Analysis ◽  
Reclaimed Wastewater

Behaviour of the fecal pollution indicators in a soil irrigated with treated wastewater under onsurface and subsurface drip irrigation

2000 ◽  
Vol 42 (1-2) ◽  
pp. 75-79 ◽  
Author(s):  
C. Campos ◽  
G. Oron ◽  
M. Salgot ◽  
L. Gillerman
Keyword(s):  
Organic Matter ◽  
Drip Irrigation ◽  
Organic Matter Content ◽  
Fecal Pollution ◽  
Fecal Coliforms ◽  
Subsurface Drip Irrigation ◽  
Treated Wastewater ◽  
Reclaimed Wastewater ◽  
Pollution Indicators ◽  
Subsurface Drip

A critical objective for any wastewater reuse programme is to minimise health and environmental hazard. When applying wastewater to soil–plant systems, it is to be noted that the passage of water through the soil considerably reduces the number of microorganisms carried by the reclaimed wastewater. Factors that affect survival include number and type of microorganisms, soil organic matter content, temperature, moisture, pH, rainfall, sunlight, protection provided by foliage and antagonism by soil microflora. The purpose of this work was to examine the behaviour of fecal pollution indicators in a soil irrigated with treated wastewater under onsurface and subsurface drip irrigation. The experiment was conducted in a vineyard located at a commercial farm near the City of Arad (Israel). Wastewater and soil samples were monitored during the irrigation period and examined for fecal coliforms, somatic and F+ coliphages and helminth eggs. Physico-chemical parameters were controlled in order to determine their relationship with removal of microorganisms. The results showed high reduction of the concentration of microorganisms when wastewater moves through the soil; and a good correlation between the reduction of fecal pollution indicators and moisture content, organic matter concentration and pH. The application of secondary treated domestic wastewater in this specific soil and under these irrigation systems affect the survival of microorganisms, thus reducing the health and environmental risk.

Control of emitter clogging in drip irrigation with reclaimed wastewater

1992 ◽  
Vol 13 (3) ◽  
Author(s):  
I. Ravina ◽  
E. Paz ◽  
Z. Sofer ◽  
A. Marcu ◽  
A. Shisha ◽  
...  
Keyword(s):  
Drip Irrigation ◽  
Reclaimed Wastewater

Comparing the impacts of drip irrigation by freshwater and reclaimed wastewater on the soil microbial community of two citrus species

2018 ◽  
Vol 203 ◽  
pp. 53-62 ◽  
Author(s):  
F. Bastida ◽  
I.F. Torres ◽  
J. Abadía ◽  
C. Romero-Trigueros ◽  
A. Ruiz-Navarro ◽  
...  
Keyword(s):  
Microbial Community ◽  
Drip Irrigation ◽  
Soil Microbial Community ◽  
Citrus Species ◽  
Reclaimed Wastewater ◽  
Soil Microbial

scholarly journals Biofilm structure and its influence on clogging in drip irrigation emitters distributing reclaimed wastewater

2009 ◽  
Vol 21 (6) ◽  
pp. 834-841 ◽  
Author(s):  
Dazhuang YAN ◽  
Zhihui BAI ◽  
Mike Rowan ◽  
Likun GU ◽  
Ren Shumei ◽  
...  
Keyword(s):  
Drip Irrigation ◽  
Reclaimed Wastewater ◽  
Biofilm Structure

scholarly journals Effect of chlorination and pressure flushing of drippers fed by reclaimed wastewater on biofouling

2020 ◽  
Author(s):  
Kévin Lequette ◽  
Nassim Ait-Mouheb ◽  
Nicolas Adam ◽  
Marine Muffat-Jeandet ◽  
Valérie Bru-Adan ◽  
...  
Keyword(s):  
Drip Irrigation ◽  
Water Distribution ◽  
Irrigation System ◽  
Resistant Bacteria ◽  
List Type ◽  
Reclaimed Wastewater ◽  
Microbial Composition ◽  
Labyrinth Channel ◽  
Biofilm Development ◽  
The Impact

AbstractDripper clogging reduces the performance and service life of a drip irrigation system. The impact of chlorination (1.5 ppm of free chlorine during 1 h application) and pressure flushing (0.18 MPa) on the biofouling of non-pressure-compensating drippers fed by real reclaimed wastewater was studied at lab scale using Optical Coherence Tomography. The effect of these treatments on microbial composition (bacteria and eukaryotes) was also investigated by High-throughput DNA sequencing. Biofouling was mainly observed in inlet, outlet and return areas of the drippers. Chlorination limited biofilm development mainly in the mainstream of the milli-labyrinth channel. It was more efficient when combined with pressure flushing. Moreover, chlorination was more efficient in maintaining the water distribution uniformity. It reduced the bacterial concentration and the diversity of the dripper biofilms compared to the pressure flushing method. This method strongly modified the microbial communities, promoting chlorine-resistant bacteria such as Comamonadaceae or Azospira. Inversely, several bacterial groups were identified as sensitive to chlorination such as Chloroflexi and Planctomycetes. Nevertheless, one month after stopping the treatments the bacterial diversity re-increased and the chlorine-sensitive bacteria such as Chloroflexi phylum and the Saprospiraceae, Spirochaetaceae, Christensenellaceae and Hydrogenophilaceae families re-emerged with the growth of biofouling, highlighting the resilience of the bacteria from drippers. Based on PCoA analyses, the structure of the communities still clustered separately from never-chlorinated drippers, showing that the effect of chlorination was still present one month after stopping the treatment.HighlightsThe fouling of drippers is a bottleneck for drip irrigation using reclaimed wastewaterBiofouling was lowest when chlorination was combined with pressure flushingThe β-Proteobacteria and Firmicutes contain chlorine resistant bacteriaThe decrease of Chloroflexi by chlorination was transitoryThe bacterial community was resilient after the interruption of cleaning events

Secondary wastewater disposal for crop irrigation with minimal risks

2001 ◽  
Vol 43 (10) ◽  
pp. 139-146 ◽  
Author(s):  
G. Oron ◽  
R. Armon ◽  
R. Mandelbaum ◽  
Y. Manor ◽  
C. Campos ◽  
...  
Keyword(s):  
Drip Irrigation ◽  
Irrigation System ◽  
Wastewater Reuse ◽  
Fecal Coliforms ◽  
Reclaimed Wastewater ◽  
Real Rate ◽  
Wastewater Disposal ◽  
Treated Effluent ◽  
Number Of Microorganisms ◽  
Subsurface Drip

A critical objective for any wastewater reuse program is to close the gap between supply of and demand for water and to minimize health and environmental hazards. Thus, the effects of treated effluent on crops, soils and community health must be considered carefully. When applying wastewater to soil-plant systems, it is to be noted that the passage of water through the soil reduces considerably the number of microorganisms carried out by the reclaimed wastewater. Nevertheless, there is a need to study the real rate of organism decay subject to water quality, soil and vegetable characteristics, and irrigation method. The aim of this work is to determine the fate of the fecal coliforms, coliphages F+ and CN13, and helminth eggs survival during the application of reclaimed wastewater in a vineyard orchard near the City of Arad (Israel) via onsurface and subsurface drip irrigation systems. Wastewater obtained from a stabilization pond, and soil samples were tested and an important decrease of microorganisms was reached in both cases, with the better values obtained with the sub-surface drip irrigation system.

The Clogging Capacity of Reclaimed Wastewater: A New Quality Criterion for Drip Irrigation

1991 ◽  
Vol 24 (9) ◽  
pp. 123-131 ◽  
Author(s):  
B. Teltsch ◽  
M. Juanico ◽  
Y. Azov ◽  
I. Ben Harim ◽  
G. Shelef
Keyword(s):  
Water Quality ◽  
Water Potential ◽  
Irrigation Water ◽  
Drip Irrigation ◽  
Quality Criterion ◽  
Additional Parameter ◽  
Reclaimed Wastewater ◽  
Irrigation Systems ◽  
Particle Content ◽  
Water Quality Criterion

The paper proposes a new water quality criterion for the evaluation of the water potential to clog screen filters which protect drip irrigation systems. This additional parameter is required by the increasing use of reclaimed wastewater for drip irrigation. A filtrability test which simulates actual clogging processes is used to analyze reservoirs receiving different portions of reclaimed wastewater (0 to 100 %) and the use of fish to reduce the particle content of water. The study demonstrates the suitability of the filtrability test to measure and analyze the clogging capacity of irrigation water, and the possibility to reduce clogging problems by proper reservoir management.

Sign in / Sign up

Export Citation Format

Share Document