Zobrazeno 1 - 8
of 8
pro vyhledávání: '"R J, Craggs"'
Publikováno v:
Hydrobiologia. 288:157-166
A total of 102 marine microalgal species (including 66 isolates from a sewage outfall site in St Andrews Bay, Scotland) were screened for their ability to remove ammonium and phosphate from primary treated sewage. Primary effluent was diluted 1:1 wit
Publikováno v:
Water science and technology : a journal of the International Association on Water Pollution Research. 51(12)
The treatment performance of a maturation pond (MP), the typical final polishing stage of an Advanced Pond System (APS), is compared with that of a surface-flow constructed wetland (CW) over 19 months. Both received approximately 67 mm d-1 of wastewa
Publikováno v:
Water science and technology : a journal of the International Association on Water Pollution Research. 51(12)
Advanced pond systems (APS), incorporating high-rate ponds, algal settling ponds, and maturation ponds, typically achieve better and more consistent disinfection as indicated by Escherichia coli than conventional waste stabilisation ponds. To see whe
Publikováno v:
Water science and technology : a journal of the International Association on Water Pollution Research. 51(12)
The optical character of waste stabilization ponds (WSPs) is of concern for several reasons. Algal photosynthesis, which produces oxygen for waste oxidation in WSPs, is influenced by attenuation of sunlight in ponds. Disinfection in WSPs is influence
Publikováno v:
Water science and technology : a journal of the International Association on Water Pollution Research. 48(2)
"Advanced" pond systems (APS) have the potential for improving treatment, including disinfection, over conventional WSPs. Disinfection in a pilot scale APS at Ngatea, New Zealand was studied. This system comprises a high-rate algal pond (HRP) that op
Publikováno v:
Water science and technology : a journal of the International Association on Water Pollution Research. 48(2)
Waste stabilisation ponds (WSPs) have been used for the treatment of dairy farm wastewater in New Zealand since the 1970s. The conventional two pond WSP systems provide efficient removal of wastewater BOD5 and total suspended solids, but effluent con
Combined photosynthesis and mechanical aeration for nitrification in dairy waste stabilisation ponds
Publikováno v:
Water science and technology : a journal of the International Association on Water Pollution Research. 48(2)
New Zealand has 16,500 dairy farms (avg. 220 cows), with cows kept on pasture throughout the year. During the 9-month dairy season, the cows are milked twice a day (averaging 2.5-3 h per day in the dairy parlour). Urine and faecal wastes deposited in
Publikováno v:
Water science and technology : a journal of the International Association on Water Pollution Research. 48(2)
Many domestic Wastewater Stabilisation Ponds (WSPs) or oxidation ponds in New Zealand require upgrading to reduce pollution of receiving waters. Advanced Pond Systems (APS) consisting of an Advanced Facultative Pond, High Rate Pond, Algae Settling Po