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Uniformity of Domestic Wastewater Effluent Application in a Subsurface Drip Distribution System
An on‐site wastewater treatment project with two separate drip fields was operated for 6 years and received no maintenance. The two drip fields (with different design configurations) contained pressure‐compensating emitters (PC) and non‐pressure‐compensating emitters (NPC), respectively, and received wastewater with an average 5‐day biochemical oxygen demand concentration of 23 mg/L. Flowrates of the PC emitters reduced from rated average of 3.50 to 1.00 L/h, and the average flowrate of the NPC emitters reduced from 2.00 to 1.53 L/h. The statistical uniformities were 48 and 71%, and the uniformity coefficients were 70 and 86% for PC and NPC emitters, respectively. Significant, but incomplete, recovery was achieved with field‐flushing and consecutive shock‐chlorination treatments of 500 and 1000 mg/L.
Uniformity of Domestic Wastewater Effluent Application in a Subsurface Drip Distribution System
An on‐site wastewater treatment project with two separate drip fields was operated for 6 years and received no maintenance. The two drip fields (with different design configurations) contained pressure‐compensating emitters (PC) and non‐pressure‐compensating emitters (NPC), respectively, and received wastewater with an average 5‐day biochemical oxygen demand concentration of 23 mg/L. Flowrates of the PC emitters reduced from rated average of 3.50 to 1.00 L/h, and the average flowrate of the NPC emitters reduced from 2.00 to 1.53 L/h. The statistical uniformities were 48 and 71%, and the uniformity coefficients were 70 and 86% for PC and NPC emitters, respectively. Significant, but incomplete, recovery was achieved with field‐flushing and consecutive shock‐chlorination treatments of 500 and 1000 mg/L.
Uniformity of Domestic Wastewater Effluent Application in a Subsurface Drip Distribution System
Persyn, Russell A. (author) / Lesikar, Bruce J. (author) / Duan, Xiaojing (author)
Water Environment Research ; 79 ; 701-706
2007-07-01
6 pages
Article (Journal)
Electronic Resource
English
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