Title:

Assessment of the effluent polishing plant using a ultrafiltration membrane installed at a palm oil mill

Group publication title:

Environment Protection Engineering

Creator:

Abdul Hadi, Numan ; Hawari, Yahaya ; Ngatiman, Muzzammil ; Jalani, Nor Faizah ; Wahad, Noorshamsiana Abdul ; Halim, Rohaya Mohamed

Contributor:

Majewska-Nowak, Katarzyna Maria. Redakcja

Subject and Keywords:

ochrona środowiska ; inżynieria środowiska

Description:

Environment Protection Engineering. Vol. 45, 2019, nr 1, s. 155-170

Abstrakt:

Palm oil mills discharge raw effluent with high biochemical oxygen demand (BOD) of about 25 000 mg O2/dm3. Conventional effluent treatment system uses ponds with a long hydraulic retention time of about 55–85 days, but the reduction of BOD is usually halted at 100–250 mg O2/dm3. Further reduction of BOD to below 20 mg O2/dm3 to meet regulation requirement needs further advanced treatment. This study evaluates the efficiency of an effluent polishing plant installed at a palm oil mill targeting final effluent BOD below 20 mg O2/dm3. Characteristic of the incoming and treated effluent, dissolved oxygen in the aeration ponds and the effluent flow rate of the treatment plant have been determined. Due to low process throughput at the mill, the polishing plant operated at only 60% of its designed capacity. Treatment of effluent showed reduction of BOD from 39.3±5.8 to 6.1±3.8 mg O2/dm3, i.e., a reduction by 80–94%. Colour – a newly proposed regulation parameter – was reduced from 1081±69 to 845±60 ADMI, i.e., by 11–30%. This study indicates that while the treatment of effluent to reduce the BOD to below 20 mg O2/dm3 is feasible, reduction of colour to less than 100 ADMI is not achievable.

Publisher:

Oficyna Wydawnicza Politechniki Wrocławskiej

Place of publication:

Wrocław

Date:

2019

Resource Type:

artykuł

Resource Identifier:

doi:10.5277/epe190112

Source:

<sygn. PWr A4232I> ; click here to follow the link ; click here to follow the link

Language:

eng

Relation:

Environment Protection Engineering ; Environment Protection Engineering. Vol. 45, 2019 ; Environment Protection Engineering. Vol. 45, 2019, nr 1

Rights:

Wszystkie prawa zastrzeżone (Copyright)

Access Rights:

Dla wszystkich w zakresie dozwolonego użytku

Location:

Politechnika Wrocławska