Alternatif Pengolahan Limbah Cair RPH 1dd

BAB III ALTERNATIF PENGOLAHAN LIMBAH CAIR RPH

3.1

Kualitas Air Limbah RPH Peiria! Parameter

Debit BOD T SS V SS  Nitrat !m"#ia %"&'at

"atua!

3

m /hari mg/L mg/L mg/L mg/L NO3N mg/L N$3N mg/L %O4%

Nilai

Nilai

Mi!imum

Ma#simu

186 3036,96 2.610 2.380 6,46 248,70 47,55

m 190 3948,048 2.750 2580 7,10 262,50 50,55

Data ()a*ita& air *imbah +%$ %egiria# i hit)#g &e*ama 7 hari bert)r)t t)r)t.

Hari #e$

1. 2. 3. 4. 5. 6. 7. +atarata

%ebit

BO%

T""

&""

m3/hari

mg/L

mg/L

mg/L

Nitrat

mg/L  NO3N

Am'!i a

mg/L

P's(at

mg/L %O4%

187,3 186 186,9 188,2 189 190

3040,95 3478.54 3880,2 3036,96 3376,29 3645,88

2660 2610 2700 2710 2690 2750

2380 2470 2467 2397 2580 2573

7,10 6,98 7,05 6,46 6,59 6,92

 N$3N 261,28 248,70 258,56 253,98 262,30 262,50

189

8 3948,04

2745

2500

6,74

250,37

49,78

188,057

8 3486,69

2695

2481

6,83

256,81

49,45

48,35 47,55 49,53 50,10 50,34 50,55

3.1.1 %ebit

Debit air *imbah ihit)#g &e*ama 7 hari bert)r)tt)r)t. Debit terbe&ar  me#-a'ai 190 m3/hari, &ea#g(a# ebit tere#ah aa*ah 186 m3/hari. Ni*ai ebit i'e#gar)hi "*eh )m*ah air 'e#-)-i, &i&a arah, &i&a r)me#, a# &i&a gaih. *)(t)a&i #i*ai ebit 'aa 7 hari 'e#g)()ra# aa i ambar 3.1 191 190 190 189

189

189 188.2 188 187.3

Nilai Debit (m3/hari)

186.9

187

Debit

186 186 185 184 1

2

3

4

5

6

7

Hari Ke-

Gambar 3.1 *)(t)a&i Ni*ai Debit Se*ama 7 $ari 3.1.) BO%

 Ni*ai BOD i)()r )#t)( me#getah)i (a#)#ga# baha# "rga#i( i a*am air  *imbah. Ni*ai BOD ti#ggi me#gi#i(a&i(a# baha air *imbah me#ga#)#g baha#

"rga#i( ti#ggi. $a&i* 'e#g)()ra# BOD terti#ggi &ebe&ar 3948, 04 mg/L, &ea#g(a# ha&i* 'e#g)()ra# tere#ah &ebe&ar 3036,96 mg/L. rai( *)(t)a&i #i*ai BOD it)#)((a# 'aa ambar 3.2. 4500 3948.05 3645.89 3376.29

3880.2

4000

3478.54 3500 3040.95 3000

3036.96

2500

BOD mg/L 2000 BOD

1500 1000 500 0 1

2

3

4

Hari Ke-

ambar 3.2 rai( *)(t)a&i Ni*ai BOD 3.1.3 T""

5

6

7

2800 2750 2750 2700

2745

  2710 2690

2700 2660

TSS mg/L

2650 2610  TSS

2600 2550

2500 1

2

3

4

Hari Ke-

5

6

7

3.1.* &"" 2600

2580

2573

2550 2500 2500

2470   2467

2450

VSS mg/L

2397

2400 2380

VSS 2350 2300 2250 1

2

3

4

Hari Ke-

5

6

7

3.1.+ Nitrat 7.2 7.1

7.05 6.98

7

6.92 6.74

6.8

Nitrat mg/L NO3-N

6.59

6.6 6.46

Nitrat

6.4

6.2 6 1

2

3

4

Hari Ke-

5

6

7

3.1., Am'!ia 265

262.5 262.3

261.28 260

258.56 256.81 253.98

255

Amonia mg/L NH3-N

250.37 248.7

250

Amonia

245

240 1

2

3

4

5

Hari Ke-

6

7

3.1.- F'sat 51

50.55 50.34 50.1 49.78 49.53 49.45

50.5 50 49.5 49

Fosat mg/L !O"-!

48.35 48.5 48

Fosat

47.55

47.5 47 46.5 46 1

2

3

4

Hari Ke-

A!alisis Perhitu!a! 1. %ebit Q =V . A 3

Q=0,00215 m / s 3

Q=186 m / hari

). BO% BO% bla!#' Bo =11,552 mg / L

B 5 =11,552 mg / L BO% sam(el 1

 Xo =12,16 mg / L

5

6

7

 X 5= 8,208 mg / L

BOD sampel 1 =

BOD sampel 1 =

[ ( X  − X  )−( B −B ) ] x (1− p ) 0

5

0

5

 p

[ ( 12,16 −8,208 )−( 11,552−11,552 ) ] x (1−0,001 ) 0,001

BOD sampel 1 =3948,048  mg/L BO% sam(el 1

 Xo =12,16 mg / L  X 5= 9,12 mg / L

( X  − X  )−( B −B ) ] x (1 − p ) [ B OD sampel 1 = 0

5

0

5

 p

BOD sampel 1 =

[ ( 12,16 −9,12 )−( 11,552 −11,552) ] x (1 −0,001 ) 0,001

BOD sampel 1 = 3036,96  mg/L /Nilai BO% rata$rata

BODave =

BODave =

BODsampel 1 + BODsampel 2 2 3948,048 + 3036,96 2

BODave =3492,504 mg / L

3.)

Alter!ati %esai! Pe!'laha!

Limbah -air r)mah '"t"#g hea# memi*i(i )a (ara(teri&ti( )tama a(#i (a#)#ga# TSS Total Suspended Solid  a# baha# "rga#i(#a ti#ggi. Bera&ar(a# (ara(teri&ti( )tama ter&eb)t, a*ter#ati 'e#g"*aha# *imbah -air +%$ ib)at e#ga# t))a# me#)r)#(a# (a#)#ga# baha# "rga#i( a# TSS *imbah. Tera'at )a a*ter#ati 'e#g"*aha# *imbah -air r)mah '"t"#g hea#, beri()t i#i mer)'a(a# ri#-ia# )#it)#ti 'e#g"*aha##a !*ter#ati 'e#g"*aha# *imbah -air +%$. a. %e#g"*aha# !#aer"bi(  Alter!ati 1 1. Bar Screen 2. "ii(a&i 'ra&eime#ta&i 3. Ta#g(i e()a*i&a&i 4. Seime#ta&i 1 5. Anaerobic filter  6. Seime#ta&i 2 7. De&i#e(&i

Alter!ati ) 1. Bar Screen 2. "ii(a&i 'ra&eime#ta&i 3. Ta#g(i e()a*i&a&i 4. Seime#ta&i 1 5. Anaerobic Baffle Reactor  6. Seime#ta&i 2 7. De&i#e(&i

 b. %e#g"*aha# !er"bi(  Alter!ati 1 1. Bar Screen 2. "ii(a&i 'ra&eime#ta&i 3. Ta#g(i e()a*i&a&i 4. Seime#ta&i 1 5. Trickling Filter  6. Seime#ta&i 2 7. De&i#e(&i

Alter!ati ) 1. Bar Screen 2. "ii(a&i 'ra&eime#ta&i 3. Ta#g(i e()a*i&a&i 4. Seime#ta&i 1 5. Aerated Lagoon 6. Seime#ta&i 2 7. De&i#e(&i

-. %e#g"*aha# "mbi#a&i !#aer"bi(!er"bi( 

3.3

Kriteria %esai! Alter!ati Pe!'laha! Limbah Cair RPH

riteria De&ai#

 Anaerobik Filter

 Hidraulic detention

510 a&im,

time h  Packing bed eigt 

1985 0,83 a&im,

m

1985

riteria De&ai# :i&ie#&i rem";a*

ABR  80<

TSS

T-h"ba#"g*")&,

:i&ie#&i rem";a*

et a*, 2003 95<

BOD

T-h"ba#"g*")&,

 Hidraulic detention

et a*, 2003 624 am et=a* 

time h  Packing bed eigt 

> :, 2003 0,83 a&im,

m

1985

riteria De&ai#

 Aerobik Filter 

:i&ie#&i 'e#i&iha#

0Tri#li! Filter2 6080< a&im,

BOD ea*ama# m

1985 4,512 a&im,

eti#ggia# meia

1985 Bia&a#a 0,92,5

m

meter et=a* >

$ea*"&& m

:, 2003 0,61,5 et=a* 3

3

%"er (?/10 m

a# : 2003 1020 a&im, 1985

riteria De&ai# ea*ama# m

 Aerated Lagoon 35 a&im, 1985

 H!draulic retention

26 a&im, 1985

time hari

3.*

Pe!e!tua! Alter!ati Pe!'laha!

 Items

Anaerobic

Trickling

 Aerated

L)a& Laha#

Filter  32,2

Filter  13,495

 Lagoon 256,25

m2

 ' 6,94

h 2

 ' 20,5

* 4,63

r 2,07

* 12,5

< +em";a* <

h 1,5 72,4

 ABR

h 3 98,2