High-Rate Algae Pond Coupled with PolyesterFiber Strips for Organics and Nutrient Removalin a Cold Climate

for efficient removal of multi-pollutants.However, slow growth and survival rate under cold climate usually causes algae loss, thus affecting HRAP performance [6].An important aspect in improving HRAP performance is finding a cost-effective and sustainable method for increasing algae biomass.It is well known that polyester fiber has excellent biocompatibility and bio-binding capacities [7].Polyester-fiber strips (PFS) slung up in HRAP can provide void spaces and growing sites for algae growth and survival under cold conditions; in addition, PFS also provide large interfaces for supporting biological and biochemical reaction to clean up the wastewater.Due to structural properties, PFS might improve HRAP performance under cold climate, which has not been investigated to date.