Effect of addition of anaerobic fermented OFMSW (organic fraction of municipal solid waste) on biological nutrient removal (BNR) process: Preliminary results

被引:19
作者
Pavan, P
Battistoni, P
Traverso, P
Musacco, A
Cecchi, F
机构
[1] Dept Environm Sci, I-30123 Venice, Italy
[2] Dept Hydraul, I-60123 Ancona, Italy
[3] Dept Chem Chem Engn & Mat, Laquila, Italy
关键词
denitrification rate; biological nutrient removal; anaerobic fermentation; municipal solid waste; RBCOD; VFA;
D O I
10.2166/wst.1998.0078
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The paper presents results coming from experiments on pilot scale plants about the possibility to integrate the organic waste and wastewater treatment cycles, using the light organic fraction produced via anaerobic fermentation of OFMSW as RBCOD source for BNR processes. The effluent from the anaerobic fermentation process, with an average content of 20 g/l of VFA+ lactic acid was added to wastewater to be treated in order to increase RBCOD content of about 60-70 mg/l. The results obtained in the BNR process through the addition of the effluent from the fermentation unit are presented. Significant increase of denitrificaton rate was obtained: 0.06 KgN-NO3/KgVSS d were denitrified in the best operative conditions studied. -Vmax shows values close to those typical of the pure methanol addition (about 0.3 KgN-NO3/KgVSS d). A considerable P release (35%) was observed in the anaerobic step of the BNR process, even if not yet a completely developed P removal process. (C) 1998 Published by Elsevier Science Ltd. All rights reserved
引用
收藏
页码:327 / 334
页数:8
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