Start-up and performance of a downflow fluidised bed reactor for biological treatment of yellow wastewater and nutrient recovery

被引：1

作者：

Espinosa-Chavez, Belem ^{[1
,2
]}

Ramirez-Vives, Florina ^{[2
]}

Zeeman, Grietje ^{[3
]}

Monroy-Hermosillo, Oscar ^{[2
]}

机构：

[1] Univ Mar, Inst Ecol, Ciudad Univ, Puerto Angel 70902, Oaxaca, Mexico

[2] Univ Autonoma Metropolitana, Dept Biotechnol, Av San Rafael Atlixco 186, Mexico City 09340, DF, Mexico

[3] Churchillweg 66, NL-6706 AD Wageningen, Netherlands

来源：

WATER SCIENCE AND TECHNOLOGY | 2022年 / 85卷 / 11期

关键词：

downflow fluidised bed reactor; kinetic parameters; struvite; ureolysis; yellow water; SOURCE-SEPARATED URINE; UREA HYDROLYSIS; STRUVITE CRYSTALLIZATION; PHOSPHORUS RECOVERY; PRECIPITATION; REMOVAL; PH; FORMALDEHYDE; UREOLYSIS; SEAWATER;

D O I：

10.2166/wst.2022.167

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The treatment of yellow water (human urine) in a downflow fluidised bed reactor (DFFBR) was investigated to evaluate biological ureolysis and nutrient recovery. The reactor was operated at 30 +/- 4 degrees C in batch mode, and hydraulic retention time=1 d. The average immobilised biomass (as volatile solids, IVS) in the reactor was 2.5 +/- 0.9 g L-support(-1), and specific ureolytic activity was 121 g(-1) Urea-N g(-1) IVS d(-1). The kinetic parameters were 0.152 mol L-1 (K-m) and 8 mol g(-1 )IVS d(-1) (V-max). The ureolysis efficiency was 93.4% and chemical oxygen demand removal efficiency was 31.2%, while total ammonium nitrogen (NH4+-N) production rate was 7 g L-1 d(-1) and phosphate removal reached 26%. Precipitates recovery during biological treatment was 1.72 +/- 0.8 g. These results suggest that the treatment of yellow water in a DFFBR is a viable option for partial recovery of N and P.

引用

页码：3208 / 3224

页数：17

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