paper kp_lydia utami setyorini_15309052
TRANSCRIPT
EVALUATION ON WASTEWATER TREATMENT PLANT
IN PT . MEPROFARM BANDUNG
Lydia Utami Setyorini and Prof. Dr-Ing. Ir. Prayatni Soewondo,MS.
Study Programme of Environmental Engineering
Faculty of Civil and Environmental Engineering ITB
Jl. Ganesha no 10 Bandung 40132
[email protected] ; [email protected]
Abstract : PT. Meprofarm is an Indonesian company specialized in formulating
pharmaceutical products in the city of Bandung. PT Meprofarm produces solid and gas
waste as well as wastewater. This internship report is intended to evaluate waste
management especially treatment process in Waste Water Treatment Plant. Wastewater
in the WWTP consists of high COD and BOD value as well as other organic substances
from production process. Based on its characteristics, wastewater is treated physically,
chemically, and biologically using main units such as clarifier, activated sludge, and plate
settler for sedimentation, and filtration. The treatment process could maintain the pH ,
temperature, and decrease both BOD and COD value of the wastewater.
Key words: Pharmaceutical formulation, Wastewater, Activated sludge, Plate settler
Abstrak : PT. Meprofarm adalah perusahaan yang bergerak dalam formulasi produk
farmasi di kota Bandung. PT. Meprofarm menghasilkan buangan atau limbah berupa
padat,cair, gas. Pembuatan laporan ini dimaksudkan untuk mengevaluasi pengelolaan
limbah khususnya proses pengolahan pada instalasi pengolahan air limbah industri.
Karakteristik limbah cair hasil produksi yang akan diolah mengandung COD atau
senyawa organik yang berupa hasil sisa proses produksi. Berdasarkan karakteristik
tersebut, pengolahan air limbah dilakukan secara fisika, kimia, dan biologi dengan
menggunakan unit utama clarifier, lumpur aktif, dan sedimentasi dengan plate settler
serta penyaringan. Pengolahan ini mampu menjaga pH dan temperatur serta menurunkan
nilai BOD dan COD.
Kata kunci : Formulasi Farmasi, Limbah cair, lumpur aktif, plate settler
I. INTRODUCTION
PT Meprofarm is a formulating pharmaceutical industry located in Jl. Soekarno Hatta no
789 Bandung. Production process will generate solid, liquid, and gas waste. Wastewater
generated is treated in the wastewater treatment plant inside the factory area. Untreated
wastewater may damage the river quality where it is dumped, therefore the wastewater
should be treated well.
II . EXISTING CONDITION
WWTP in PT Meprofarm treats 500 liter/hour of wastewater originated from washing
process and in between substances that is not categorized as hazardous waste.
Units utilized are mentioned in the paragraphs below
- Antibiotic, 1st, 2nd Equalization Basin
Equalization basin functions to equalize flow using diffuser. Antibiotic and 1st
equalization basin use perforated pipe as diffuser while the 2nd equalization basin
uses disc diffuser. Antibiotic basin receives waste from beta-lactam and
cephalosporin production plant, inactivating antibiotic using NaOH solution. The 1st
equalization basin receives waste from non antibiotic plant and RO water plant. The
2nd equalization basin receives waste from 1st basin and Mepro 2 plant.
- 1st and 2nd Clarifier
Coagulant and flocculant , PAC and polyelectrolyte,are added inside the 1st clarifier.
The 2nd clarifier receives the effluent from 1st clarifier thus preventing shock
loading.
- Neutralization Tank
Neutralization tank is utilized to receive effluent from coagulation and flocculation
process and serves as a control basin should the previous process fails. At the bottom
of the tank there is a tap above the 1st equalization basin to recirculate the wastewater
if too much sediment was formed.
- 1st and 2nd Aeration Pond
Aeration basin treats waste biologically using activated sludge system. Both basins
have the same functions, while the aerating process is conducted 24 hours 7 days in a
week.
- Sedimentation
Sedimentation tank collects activated sludge using 11 plate settlers. Collected sludge
will be sent to drying bed or recirculated to the aeration basin.
- Activated Carbon Filter
Filter functions as an adsorbent of untreated materials such as colouring substances if
there are rejected products in the wastewater treatment plant.
- Biofilter
Biofilter consists of stone and sponge to filter opaque wastewater . The tank is
cleaned twice a week
- 1st and 2nd Control Basin
Control basin consists of two basins using diffuser. On the 2nd basin 3 catfishes as
bio-indicator are placed. The final effluent will proceed to the Cipanjalu River.
III. EVALUATION
According to the regulation SK.Gubernur Jabar no 6/1999 , treated wastewater at PT
Meprofarm has already fulfilled the effluent standard permitted
- pH : WWTP treats wastewater so it fulfilled the standard value 6-9.
- BOD : WWTP treats wastewater so it fulfilled the standard value 75 mg/l.
- TSS : WWTP treats wastewater so it fulfilled the standard value 75 mg/l but the
effluent is still opaque.
- COD: WWTP treats wastewater so it fulfilled the standard value 150 mg/l.
IV. SUGGESTIONS
- Tighter WWTP monitoring.
- Bio indicator replacement using goldfish.
- Using contact stabilization system for the aeration process.
- Discharge the sludge more frequently.
V. REFERENCES
1.Tchobanoglous, et. al. 2004. Water and Wastewater Engineering : Treatment
and Reuse.Hong Kong : McGraw-Hill Compnaies, Inc.
2.Sawyer, Clair , et. al. 2003. Chemistry for Environmental Engineering and
Science. New York : McGraw-Hill Companies, Inc
3. Herumurti, Welly.2008.Treatment of Pharmaceutical Wastewater Using
Mesophilic UASB and Hybrid UASB Reactor. Malaysia: Universiti Teknologi
PETRONAS