Post on 25-Apr-2020
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8ENVIRONMENTAL ASPECTS
SewageIndustrialdischarges
Evaporation
Wastewater treatment plant(in developing countries)
Sewerage system
Irrigation channels
Infiltration
Storage damAquaculture
Aquatic plants
Sprinklers
Evaporation
River
Irrigationdrainage
Aquatic plants
Lake
Cattle consumingirrigated crops
ConsumerCropsCattleWater
Aquifer
Water + salts
Infiltration
Soil(retains metals, organic matter and phosphorus)
Compounds and waterabsorption by plants
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Volume 2: Wastewater use in agriculture
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Guidelines for the safe use of wastewater, excreta and greywater
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Volume 2: Wastewater use in agriculture
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Guidelines for the safe use of wastewater, excreta and greywater
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Volume 2: Wastewater use in agriculture
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Guidelines for the safe use of wastewater, excreta and greywater
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Volume 2: Wastewater use in agriculture
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Guidelines for the safe use of wastewater, excreta and greywater
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Tabl
e8.1
(con
tinue
d)
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Volume 2: Wastewater use in agriculture
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Tabl
e8.1
(con
tinue
d)
(con
tinue
d)
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Guidelines for the safe use of wastewater, excreta and greywater
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Tabl
e8.1
(con
tinue
d)
(con
tinue
d)
119
Volume 2: Wastewater use in agriculture
119
Tabl
e8.1
(con
tinue
d)
(con
tinue
d)
120
Guidelines for the safe use of wastewater, excreta and greywater
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Tabl
e8.1
(con
tinue
d)
(con
tinue
d)
121
Volume 2: Wastewater use in agriculture
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Guidelines for the safe use of wastewater, excreta and greywater
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Volume 2: Wastewater use in agriculture
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Water balance in Mexico City and the Mezquital Valley
29 m3/s from groundwaterand surface water from basins
requiring pumping 1200 mfrom 300 km
62 m3/s Mexico City watersupply
12 m3/s of rainwater and 48 m3/s ofmunicipal wastewater
8 m3/s urban reuse
52 m3/s of wastewater
100 m
25 m3/s of wastewater infiltration
25m
3 /sof
natu
ral
rech
arge
33m
3 /sfro
mgr
ound
wat
er
Mexico City aquifer
Mezquital Valley aquifer
70 km
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Box 8.3 (continued)
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Table 8.5 (continued)