Reed beds for biosolids drying in the arid northwestern United States

1997 ◽  
Vol 35 (5) ◽  
pp. 287-292 ◽  
Author(s):  
Peter S. Burgoon ◽  
K. Frank Kirkbride ◽  
Mike Henderson ◽  
Evan Landon

Reed beds for dewatering biosolids have been successful throughout Europe and in the northeastern temperate United States. This paper reports on the use of reed beds in the arid Columbia Basin in the state of Washington, USA. Native stands of the common reed, Phragmites australis were propagated and planted in the reed beds. The hot, dry, windy, climate has required simple changes in standard operation of the reed beds. The reeds were stressed by the hot dry winds and lost top shoot growth when beds remained drained in the Spring Summer and Fall months. Maintenance of water levels in the cells has reduced symptoms of heat stress in the plants. These operational changes may have an effect on oxidation of organic matter and nitrogen in the filtrate. The operational changes may have effected the dewatering and decomposition of the biosolids. The dry hot summers, and freezing winters enhance the dewatering ability of the reed beds and make them an appropriate solids dewatering technology for the region.

Koedoe ◽  
2004 ◽  
Vol 47 (1) ◽  
Author(s):  
M.W. Van Rooyen ◽  
C.A. Tosh ◽  
N. Van Rooyen ◽  
W.S. Matthews ◽  
M.J.S. Kellerman

In Maputaland, South Africa, the common reed (Phragmites australis) is used extensively for hut building, fencing, craftwork and thatching. As a result of over-harvestingmost reed beds in communal areas have been degraded and are no longer producing reeds of the desired quality. At present the most productive reed beds are all found inconservation areas. The KwaMsomi area of the Muzi Swamp in the Tembe Elephant Park has been allocated to the Sibonisweni community for harvesting purposes. Thiscommunity has recently requested Ezemvelo KwaZulu-Natal Wildlife for additional areas for harvesting on the grounds that the current site was no longer yielding reeds of suitable quality. The main objective of this study was therefore to determine whether there was a decline in reed quality in the KwaMsomi harvested area. The results of thisstudy suggest that harvested areas contained more thin, short reeds than unharvested areas. Fire can be used to increase reed diameter in harvested areas, but will not significantly affect reed height. Ideally, reeds should only be harvested after the active growth period, when most of the nutrient reserves have been translocated to the rhizomes andthe buds are still dormant. To improve reed quality a three-year rotational harvesting programme should be implemented to allow the reeds to recover fully before being harvested again.


2017 ◽  
Vol 8 ◽  
Author(s):  
Franziska Eller ◽  
Hana Skálová ◽  
Joshua S. Caplan ◽  
Ganesh P. Bhattarai ◽  
Melissa K. Burger ◽  
...  

BioControl ◽  
2018 ◽  
Vol 63 (3) ◽  
pp. 391-403 ◽  
Author(s):  
Richard A. Casagrande ◽  
Patrick Häfliger ◽  
Hariet L. Hinz ◽  
Lisa Tewksbury ◽  
Bernd Blossey

Author(s):  
D. W. Minter

Abstract A description is provided for Tapesia evilescens, a saprobe on dead stems of grasses, particularly the common reed (Phragmites australis). Some information on its substrata, habitat, dispersal and transmission and conservation status is given, along with details of its geographical distribution (Europe (Finland, Netherlands, Ukraine, UK)).


1997 ◽  
Vol 35 (5) ◽  
pp. 143-147 ◽  
Author(s):  
Olga Urbanc-Bercic ◽  
Alenka Gaberšcik

In this study an attempt has been made to estimate the vitality of the common reed (Phragmites australis) grown in the constructed wetland. The efficiency of solar radiation uptake of leaves was measured and terminal electron transport system (ETS) activity of roots was determined in specimens from different locations on the reed bed. The results showed that photochemical efficiency of PS II, expressed as FvFm ratio, was higher in plants growing in the middle of the well established stand, but it was lower in plants growing in the area permanently flooded with leachate, where plants were significantly lower. Potential respiration of roots on the vertical rhizome decreases with depth, while it showed slight variations when determined at the same depth, but in plants from different locations within three beds of RBTS.


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