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guidelines. However, it is a common practice to use the Food and Agriculture
Org~l1izatiol1 (FAa) and \Vorld Health Organization (WHO) Guidelines as a
reference.
Tables 3 through 5 are related to the quality of treated domestic
wastewater effluents to be reused in irrigating agricultural crops. The
remaining Tables 6 - 12 present the tolerance and sensitivity of crops to
salinity and other specific ions like Sodium, Boron and CWoride. These are
adapted from the FAO Guidelines (1985). Treated domestic wastewater is
regulated by the Jordanian Standard 893 (Table ·13) adopted in 1994 by
DSS. Regarding air pollution, Jordan does not have any existing standards or
regulations to control air pollution.
~ulations Armlk~ble to the JISICO Dischar~
Industrial wastewater produced by the JISICO consists of cooling tower
blowdown from the oxygen plant, the power station, and the rolling mill's
reheating furnace. These blowdowns are discharged onto the ground,
therefore the Jordanian standard 202 for industrial discharges to wadis, sea, or
reuse for irrigation would apply. Other industrial wastewater discharge
include the softener regeneration and sand filter backwash. Thesf'· effluents
are currently discharged to the rolling mill 's cooling water treatment system.
The rolling mill's cooling water treatment system discharges water onto the
ground for irrigation of nearby trees. This discharge is also subject to
Standard 202 for reuse for irrigation and, if the discharge reaches a wadi, it
would be subject to standard 202 for discharge to wadis.
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