l a n r u J Teknobiolog,iI II(2 )2012 : 51 – 90 1 0 7 8 0 2 : N S S I – 5428
i
r
a
d
A
4
t
il
o
e
Z
n
a
g
n
e
d
e
F
m
a
g
o
L
i
s
p
r
o
s
d
A
s
e
s
o
r
P
m
u
m
it
p
O
i
s
i
d
n
o
K
F
l
y
h
s
A
S
a
w
ti
,
r
a
b
k
A
l
ir
j
a
F
,
a
n
ir
h
a
Z
a
d
I
,r
a
i
n
it
l
u
Z
d
a
n
M
a
y
a
S
a
ir
m u ir o t a r o b a L ProdukJ urusanTeknikKimiaFakutla sTeknikUniverstia sRiau , m a n a P a y d i w a n i B s u p m a K Pekanbaru28293 E-mali :[email protected] a r t s b A c t Ironi soneoft heheavymetalst ha tarehazardou sandt oxici fmeasureexceedst he n o ri e h t h c i h w f o e c n e t s i x e e h t y b d e s u a c y ti l a u q r e t a w f o n o it a d a r g e D . d l o h s e r h t n o s t s i x e y d a e rl a t a h t t n e t n o c the ground because o fthe layer so fsoi lthrough . n o ri s i h c i h w f o e n o , s t n e m e l e l a c i m e h c n i a tr e c s n i a t n o c r e t a w e h t h c i h w O fneo o t s d o h t e m e h t decrease the concenrtaiton of dissolved metals ,especially heavy s l a t e m ,namelyadsorpiton .Theaimoft hi sresearcht ostudyt heeffec to fmixing e ti l o e z h ti w l a t e m e F n o it p r o s d a e h t f o e r u t a r e p m e t d n a n o it a r e l e c c a 4A using f o h c a o r p p a Response Surface Method Cenrta l Compostie design to obtain n o it p r o s d a e h t n o it i d n o c m u m it p o Femeta lwtihzeoltie4A .Theuseofzealtie4A , 0 4 / 0 6 o it a r e m u l o v h ti w a n i m u l a d n a a c il i s f o n o it c a e r g n i x i m m o r f s i s e h t n y s r o f d e il p p a s a w s r u o h 8 l e g f o e m it g n it a e h d n a , s r u o h 3 t n a t c a e r f o e m it g n i x i m h ti w A 4 e ti l o e z h ti w l a t e m e F f o s s e c o r p n o it p r o s d a e h T . l a t e m e F f o n o it p r o s d a i x i m ngacceleraiton range 300 - 600 rpm and temperature range 30- 60°C .The p r o s b A c i m o t A y b d e z y l a n a c i n o i e F f o n o it a rt n e c n o c iton Specrtophotomerty . ) S A A ( Ther esutl sshowt ha tperformanceo fzeoltie4AcanadsorpFemeta labou t o c m u m it p o e h t d n a , % 9 3 4 . 7 9 ndiiton obtainedfo rmixingacceleraitonwa sabou t . C ° 7 8 t a e r u t a r e p m e t d n a m p r 0 3 2 1 y e K words: Adsorpiton , Atom Absorpiton Spectrophotometry , Heavy metal , M e c a f r u S e s n o p s e R ethodeCentra lCompostieDe isgn, Zeoltie..
1
P
e
n
d
a
h
u
l
u
a
n
g n a y t a r e b m a g o l s i n e j u t a s h a l a s n a k a p u r e m i s e B . s a t a b g n a b m a i h i b e l e m a y n r a d a k a li b a p a a y a h a b r e b a y n ri h k a g n a y s u s u g n i d n i d k a s u r e m t a p a d e F m a g o L i s a l u m u k a r e t t a p a d a g u j e F u b e D . n a it a m e k n a k b a b e y n e m o e v l a m a l a d i d l idan menyebabkan berkurangnya fungs i u r a p -paru. p e K t u r u n e M utusan Menrt i Kesehatan Repubilk a i s e n o d n I No .907/MENKES/SK/VI/I2002t angga l29Jul i t a r a y s g n a t n e t 2 0 0 2 -syara tdan pengawasan kualtia sai r u ti a y k i a b g n a y i s m u s n o k r i a m a l a d e F r a d a k , m u n i m e s besa r 0,3 mgl/ . Penurunan kualtia s ai r diantaranya a d a h a d u s g n a y i s e b n a g n u d n a k a y n a d a h e l o n a k t a b i k a i d n a s i p a l a n e r a k h a n a t a d a p -lapisantanah yangdliewat iai r r u s n u g n u d n a g n e m -unsu rkimia tetrentu ,salah satunya . ) 4 0 0 2 , il A n a d s a e r d n A ( i s e b h a l a d a r Pose spenghliangan logam bera tdar i ilmbah cai r , it r e p e s a r a c a p a r e b e b n a g n e d n a k u k a li d h a d u s ( n a p a d n e g n e p preciptiaiton )menggunakan bahan kimia , , n o i n a r a k u tr e p , u t n e tr e t t u r a l e p n a k a n u g g n e m i s k a rt s k e ( k il a b a s o m s o reverse osmoiss ) dan adsorpsi . Prose s a k ij t a p e t g n a y n e b r o s d a s i n e j n a h il i p n a g n e d i s p r o s d a s e s o r p n a k a p u r e m a y n n i a l s e s o r p n a g n e d n a k g n i d n a b i d n a g n a li h g n e p m a l a d f it k e f e p u k u c i p a t a n a h r e d e s g n a y m u m u g n il a p g n a y n e b r o s d A . ri a c h a b m il i r a d t a r e b m a g o l i s , a n i m u l a , fi t k a n o b r a k h a l a d a i a k a p i d ilkage ldanzeoil t .) 3 0 0 2 , h a m il s a T n a d i t n a y ir S ( l u k e l o m n a li b m a g n e p i a g a b e s n a k i s i n if e d i d i s p r o s d A -u t a u s m a l a d n a a k u m r e p u a t a r a u l n a a k u m r e p h e l o l u k e l o m a p a r e b e B . n a t u r a l n a a k u m r e p h e l o u a t a n e b r o s d a n a t a d a p k g n it i h u r a g n e p m e m t a p a d g n a y g n it n e p r o t k a f atan , n a k u d a g n e p h a l a d a t u b e s r e t i s p r o s d a a y n i d a jr e t t a z l u k e l o m n a r u k u , t u r a l a y a d , n e b r o s d a k it s ir e t k a r a k n a t u r a l r u t a r e p m e t n a d n a t u r a l H p , t u r a lr e t (Andrea sdan .) 4 0 0 2 , il A n a k u k a l e m h a l e t a g u j u l u h a d r e t i ti l e n e p a p a r e b e B g n e m a y a p u i a n e g n e m n a it il e n e p urang i atau bahkan a d a p h a b m il i r a d a y a h a b r e b t a r e b m a g o l n a k g n a li h g n e m r a d a k n a n u r u n e p i ti l e n e m ) 4 0 0 2 ( il A n a d s a e r d n A . n a ri a r e p o g o r o n o P m a l a t il o e z a i d e m n a k a n u g g n e m n a g n e d e F n a d n e u lf n i i s a rt n e s n o k i s a ir a v n a g n e d u y n it n o k a r a c e sI
J
S
A
T
i g o l o i b o n k e T n a p a r e T s ni a S h ai m lI la n r u J u ai R s a ti s r e vi n U n ai til e n e P a g a b m e L6 0 1 il o e z n a ri t u b r e t e m a i d t .Pengamblian sampe l itap 1 jam e F i s a rt n e s n o k t a a s a d a p a v r u k t a p a d i d a g g n i h i l a k e s n a d i c u S . m u n i m r i a r a d n a t s i a u s e s l / g m 3 , 0 = ) e C ( n e u lf f e A t il o e Z a d a p ) I I ( n Z m a g o l n o i i s p r o s d a g n e m ) 0 1 0 2 ( l u r u N i a P i m o m p I T P a r a b u t a b r a s a d u b a i r a d s i s e t n i s i d g n a y ( ton ) e d o t e M n a g n e d Batch. Dar ipeneilitan tersebu tdiketahu i m a g o l n o i n a k g n a li h g n e m u p m a m t u b e s r e t A t il o e z a w h a b . % 4 7 , 9 9 a g g n i h ) I I ( n Z t a r e b t il o e z n a k a n u g g n e m ) 7 0 0 2 ( i t a y d r a H n a d u y a h a R g n a y r i a c h a b m il a d a p e F t a r e b m a g o l p a r e y n e m k u t n u k u p u r e k l i c e k i rt s u d n i s a k e b g n e r o g k a y n i m r u p m a c r e t a r a c e s batch .Efifsiens ipenyisihan Fe yang pailng itngg i 0 2 t il o e z n a r u k u a d a p h e l o r e p i d ) % 9 5 , 3 7 ( -40meshdengan i ti l e n e m ) 3 0 0 2 ( h a m il s a T n a d i t n a y ir S . m a r g 8 a i d e m t a r e b 2 i s a k if i d o m r e t m a l a t il o e z a d a p ) I I I (i s e b i s p r o s d a a k it e n i k -a d a p a d e b r e b g n a y m a s a n a a n u g g n e P . l o s a it o z n e b o t p a k r e m n a k b a b e y n e m m a l a t il o e z p a d a h r e t a i m i k o i s if n a u k a lr e p i s p r o s d a u k a li r e p dar iadsorbent erhadapbes(iIII )berbeda . a l u p i r a d n u s u s r e t g n a y l a r e n i m s i n e j u t a u s h a l a d a t il o e Z O i S ( a k il i s 4 )danalumina( AlO4 )denganr ongga-ronggad i n o i i s ir e b g n a y a y n m a l a d -ionl ogam ,biasanyal ogamalkal i a b i D . ri a l u k e l o m n a d , h a n a t i l a k l a n a d ndingzeoil talam , zeoil tsinteitsl ebihdisuka ikarenal ebihaktfi ,selekit fdan i n i t a a s a d a P . m a l a t il o e z n a g n e d n a k g n i d n a b i d l i b a t s k i a b , t a k g n i n e m n i k a m e s t il o e z l a r e n i m n a a n u g g n e p a l a k s r e b i rt s u d n i a g g n i h l i c e k i rt s u d n i m a l a d n a a n u g g n e p r a s e b (Uflahdkk, .2006.) ) 1 1 0 2 ( i h c u S . A 4 t il o e Z h a l a d a s it e t n i s t il o e z u t a s h a l a S i s i d n o K . ti w a s h s a y lf i r a d A 4 t il o e z s i s e t n i s n e m h a l e t a d a p u ti a y A 4 t il o e Z s i s e t n i s k u t n u k i a b r e t campuransiilka u t k a w , 0 4 / 0 6 e m u l o v n a g n i d n a b r e p n a g n e d a n i m u l a n a d a t k a e r n a k u d a g n e p n3j amdanwaktupemanasange l8j am. r a s e b h i b e l g n a y n o i r a k u t s a ti s a p a k i k il i m e m A 4 t il o e Z a g g n i h e s , n i a l g n a y t il o e z e p it n a g n e d n a k g n i d n a b i d t a r e b m a g o l n a k g n a li h g n e m t a p a d n a k p a r a h i d i n i n e b r o s d a . ir t s u d n i h a b m il m a l a d g n u d n a k r e t g n a y e F i tr e p e s e P neilitani n ibetrujuanuntukmendapatkankondis iprose s i s p r o s d a ) r u t a r e p m e t n a d n a k u d a g n e p n a t a p e c e k ( m u m it p o i r a d s i s e t n i s i d g n a y ( A 4 t il o e z n e b r o s d a n a g n e d e F m a g o l h s a y lf sawti )menggunakan metode Response Sufrace e d o h t e M -Centra lCompostieDeisgn.
.
2
B
a
h
a
n
d
a
n
M
e
t
o
d
e
. 1 . 2 BahandanAlat u ti a y i n i n a it il e n e p a d a p n a k a n u g i d g n a y n a h a B lfy ash ,t i w a s NaOH, A l(OH)3 ,aquades ,HNO3 %2 , aN OH 1M , O S e F 4 . Alat-ala t yang digunakan yatiu reakto r tangk i , k u d a g n e p r e b furnace ,oven ,itmbangananailitk,l abuukur , n a w a c , r u k u s a l e g , a l a i p s a l e g crucible ,pengadukmekanik , r e t e m o h c a t ,pompavakum ,corongbuchner ,ketra ssairng , s a tr e k p sH, atusetala tspekrtofotomert iserapanatom ,satu t a l a t e s pengaduka n ilstirk ,wate rbatchdan tsopwatch. . 2 . 2 Preparas iZeoil t4A A 4 t il o e z i s a r a p e r p k u t n u n a k a n u g i d g n a y u k a b n a h a B .t a n i m u l a m u ir t a n n a d t a k il i s m u ir t a n h a l a d a Larutan m a r g 5 2 r u b e l e m n a g n e d t a u b i d t a k il i s m u ir t a n lfy ash 0 0 5 r u t a r e p m e t a d a p g n ir e k H O a N r g 5 , 2 6 n a d t i w a s oC m a l e s a 5 jam . Setelah dingin ,leburan tersebu t diber i t u r a l r a g a m a j 4 2 a m a l e s n a k r a i b i d n a d l m 0 0 1 s e d a u q a n a k r e c n e i d n a d g n ir a s i d n a i d u m e k n a t u r a L . a n r u p m e s .) 1 1 0 2 , i h c u S ( l m 0 5 2 i a p m a s n a k t u r a l e m n a g n e d t a u b i d t a n i m u l a m u ir t a n n a t u r a L 1 m a l a d H O a N m a r g 0 5 , 0 3 00 m laquades .Ke dalam ) H O (l A r g 5 6 , 1 2 k a y n a b e s n a k u s a m i d u ti n a t u r a l 3sambi l ) H O (l A a u m e s h a l e t e S . k u d a i d 3laru tkemudiandiencerkan .) 1 1 0 2 , i h c u S ( l m 0 5 2 i a p m a s i s a r a p e r P zeoil t4 A mengikut iprosedu r yang telah ) 1 1 0 2 ( i h c u S h e l o n a k u k a li d dengan mencampurkan n a g n i d n a b r e p n a g n e d t a k il i s m u ir t a n n a d t a n i m u l a m u ir t a n n a k k u s a m e m n a g n e d 0 4 / 0 6 e m u l o v natirum aluminat n a h a lr e p -lahan sambi ldiaduk selama 3 jam hingga n a r u p m a c homogen dan terbentuk lg e berwarna puith . l e G dipanaskan d ioven pada suhu 80oC selama 8 jam . g n a y n a p a d n E . i c u c i d n a d g n ir a s i d l e g a y n t u j n a l e S . l a rt e n H p a g g n i h s e d a u q a n a g n e d i c u c i d k u t n e b r e t 0 2 1 u h u s a d a p n e v o n a k a n u g g n e m n a k g n ir e k i d n a p a d n E oC a d o t e m n a g n e d i s a s ir e t k a r a k i d A 4 t il o e Z . m a j 3 a m a l e s n a d h a r e m a r f n i i p o k s o rt k e p s dfiraksis ina rX. . 3 . 2 Adsorps iLogamFe a r a c e s n a k u k a li d i s p r o s d a s e s o r P batchdandliakukan : t u k ir e b i a g a b e s n a p a h a t n a g n e d . 1 Membua tlarutan induk FeSO41000 ppm ,lalu uku r . S A A i d a y n l a w a i s a rt n e s n o k . 2 Larutan induk FeSO4 diambi l sebanyak 10 m l c n e i d n a i d u m e k erkanpadal abuuku r100m ldengan m a l a d e k n a k k u s a m i d n a d m p p 0 0 1 i s a rt n e s n o k n a d n a k u d a g n e p n a t a p e c e k r u t a s s a l g r e k a e b l a w a i s a rt n e s n o k r u k u i d u l a l , a y n r u t a r e p m e t .) o C ( n a s a n a m e p . 3 Kemudian dimasukkan zeoil t 4A , dan diuku r d l i b m a s ) e C ( r i h k a i s a rt n e s n o k icar i waktu . a y n n a g n a b m it e s e k . 4 Setelah didapa t waktu keseitmbangan , kemudian n a t a p e c e k k u t n u i s p r o s d a s e s o r p n a k t u j n a li d a d a p i tr e p e s a y n n i a l r u t a r e p m e t n a d n a k u d a g n e p . 3 n a d 2 r o m o n h a k g n a l . 5 Persentase efifsiens i penjerapan dapa t dtientukan : s u m u r n a g n e d if f E % siensi= 𝐶 − 𝑒𝑜𝐶𝑜𝐶 𝑥 01 0 (1 ) : n a g n a r e t e K Ce=Konsenrtas iFes etelahpenjerapan Co=Konsenrtas iFes ebelumpenjerapan . 4 . 2 Preparas iZeoil t4A n a k p a r e n e m n a g n e d n a k u k a li d a t a d s i s il a n a n a d n a g n a c n a R ( M S R ResponSufrace Method) .RSMadalahsekumpulan k i n k e t n a d a k it a m e t a m e d o t e m -teknik staitsitk yang s i s il a n a n a k u k a l e m n a d l e d o m t a u b m e m n a u j u tr e b . l e b a ir a v a p a r e b e b h e l o i h u r a g n e p i d g n a y n o p s e r i a n e g n e m n a h a l o g n e p m a l a d n a g n u ti h r e p n a k h a d u m e m k u t n U t a d a ,rentangvairabe lprose sdikodekankedalamrentang (-1.414 ,0 ,1,414) .Sehingga hubungan antara vairabe le T knobiologi Vo.lI II .N 2 : 5o 1 – 90 1 0 7 8 0 2 : N S S I - 5428 7 0 1 n a d , )i ξ ( s e s o r p coded va irabel s(Xi )dapa tdinyatakan .) 1 9 9 1 , y r e m o g t n o M ( t u k ir e b n a a m a s r e p i tr e p e s
w
o
l
h
g
i
h
d
i
m
i
i i i[
[
[
[
i
X
(2) i ξ : a n a m i D mid .=( ξ ihigh+ξ ilow/) 2. i n i n a a b o c r e p n a g n a c n a r k u t n u n a h u p m e t h a l m u J . 1 l e b a T a d a p t a h il i d t a p a d M S R n a k a n u g g n e m n a g n e d . 1 l e b a T Tempuhanr ancangan percobaan n u R Natura lVariabel CodedVariabel [1 [2 X1 X2 1 3 00 3 0 -1 -1 2 3 00 6 0 -1 1 3 6 00 3 0 1 -1 4 6 00 6 0 1 1 5 4 50 4 5 0 0 6 4 50 4 5 0 0 7 4 50 4 5 0 0 8 4 50 4 5 0 0 9 6 62 4 5 1,414 0 0 1 2 38 4 5 -1,414 0 1 1 4 50 2 4 0 -1,414 2 1 4 50 6 6 0 1,414 n a g n u ti h r e P opitmas iadsorpsil ogamFe denganzeoil t n a d n a k u d a g n e p n a t a p e c e k h u r a g n e p p a d a h r e t A 4 n a g n e d s it a m e t a m l e d o m i r a d n a k u t n e ti d t a p a d r u t a r e p m e t n e i s if e o k -koeifsien mode lpersamaan menggunakan orde : u ti a y a u d
2 12 1 2 2 2 2 2 1 1 1 2 2 1 1 0
x
x
X
x
x
x
y
E
E
E
E
E
E
( 3).
3
H
a
s
i
l
d
a
n
P
e
m
b
a
h
a
s
a
n
a d a p n e b r o s d a i a g a b e s n a k a n u g i d g n a y A 4 t il o e Z . x r a n i s i s k a r fi d n a g n e d i s a s ir e t k a r a k i d i n i n a it il e n e p a d a p n a k li p m a ti d i s a r a p e r p l i s a h A 4 t il o e z m a r g o t k a r fi D ) 2 9 9 1 , k k d , t a r u M ( r a d n a t s A 4 t il o e z n a d 1 r a b m a G . 2 r a b m a G a d a p n a k li p m a ti d r a b m a G 1 .Poladfiraks izeoil thasi lpreparasi . 2 r a b m a G Poladfiraksis tanda rzeoil t4Adar iMura t ) 2 9 9 1 ( a d a p n a k li p m a ti d g n a y m a r g o t k a r fi d n a g n i d n a b r e p i r a D g n a y t il o e z i s k a r fi d a l o p a w h a b t a h il r e t , 2 n a d 1 r a b m a G n a d 0 4 / 0 6 n a t k a e r e m u l o v n a g n i d n a b r e p a d a p i s a r a p e r p i d n a s a n a m e p r u t a r e p m e t g 0el 8 oC memiilk inlia isudu t2θ 2 t u d u s i a li n n a g n e d a m a s ri p m a h g n a y θ zeoil t4As tandar , i n i i s a r a p e r p l i s a h t il o e z a w h a b n a k l u p m i s i d t a p a d a k a m . A 4 t il o e z h a l a d a . 1 . 3 Hasi lPenyerapanFedenganZeoil t4A k u d n i n a t u r a l n a k a n u g g n e m A 4 t il o e z a d a p e F n a p a r e y n e P m a g o l n a p a r e y n e p l i s a h n a d m p p 4 7 , 7 9 i s a rt n e s n o k n a g n e d a ti d i n i e F mplikan pada Tabe l 2 .Kemudian dihtiung if f e n e s r e p siens i dar i penyerapan logam Fe dengan l e b a T a d a p n a k li p m a ti d g n a y ) 1 ( n a a m a s r e p n a k a n u g g n e m . 3 . 2 l e b a T Hasi lpenyerapanl ogamFe o N e P . c e K k u d a g n n a r e p m e T r u t a i s a rt n e s n o K l a w A n a s a n a m e P AKkohnsrie(npprtams) i ) m p r ( (°C) (ppm) 1 0 0 3 3 0 67,28 3 ,39 2 6 0 78,06 3 ,8 3 0 5 4 5 4 72,571 5,793 4 4 5 72,97 3,362 5 4 5 72,238 3 ,7 6 4 5 72,493 2 ,47 7 6 6 79,027 19,7233 8 2 5 62,593 7,846 9 0 0 6 3 0 81,727 12,177 0 1 6 0 84,427 8,546 1 1 6 62 4 5 83,26 11,531 2 1 2 38 4 5 70,404 2,238r a i n it l u Z Kondis iOpitmumProse sAdsorps iLogamFe 8 0 1 . 3 l e b a T Persenefifsiens ipenyerapanl ogamFe o N a y n r a n e b e S i a li N Vairabe lAilas % i s n e i si f f E ) m p p ( a g n e P . c e K n a k u d Tea mtuprer Kedcu.Pkeannga Treamtupre ) m p r ( (oC ) X 1 X2 1 3 00 3 0 -1 -1 94,96 2 3 00 6 0 -1 1 95,13 3 6 00 3 0 1 -1 8 5,1 4 6 00 6 0 1 1 89,87 5 4 50 4 5 0 0 92,02 6 4 50 4 5 0 0 95,39 7 4 50 4 5 0 0 94,87 8 4 50 4 5 0 0 96,59 9 6 62 4 5 1,414 0 86,15 0 1 2 38 4 5 -1,414 0 96,82 1 1 4 50 2 5 0 -1,414 87,46 2 1 4 50 6 6 0 1,414 75,04 a w h a b t a h il r e t 2 l e b a T a d a P tejradinya penurunan l a w a i s a rt n e s n o k i r a d n a s a n a m e p l a w a ) I I ( e F i s a rt n e s n o k a d a p n a k t a b i k a i d i n i i s a rt n e s n o k n a h a b u r e P . k u d n i n a t u r a l t a a s pemanasan, (FeII )suflatkehliangan ria kirstailsasi nd a l a t s ir k hjiau a sil diubah menjadi padatan koto rkuning t a r d i h n a .Bahananhidratakanmelepaskansuflu rdioksida p a u n a d puithbelerangt iroksida ,yangakanmeninggalkan a n r a w cokla tkemerahanberupabes(iIII )oksida ,sehingga . ) 7 0 0 2 , m i n o n A ( g n a r u k r e b n a k a ) I I ( e F i r a d i s a rt n e s n o k F n a p a r e y n e p i s n e i s if f e n e s r e P e oleh adsorben zeoil t4A . 2 l e b a T a d a p n a k li p m a ti d n a k r a b m a g g n e m g n a y l e d o m , s a t a i d a t a d n a k r a s a d r e B s a b e b l e b a ir a v n a g n e d p a r e j a y a d a r a t n a n a g n u b u h : h a l a d a ) r u t a r e p m e t n a d n a k u d a g n e p n a t a p e c e k ( 8 1 7 , 4 9 = p a r e j % - 2,930X2 – 6,736X22+4,900X1X2 l e d o m n a ij u g n e p n a k u k a li d , s a t a i d n a a m a s r e p p a d a h r e T a r a c 3 n a g n e d n a k u k a li d l e d o m n a ij u g n e P . i s e r g e r : u ti a y ) 8 0 0 2 , n a w a i n r u K ( . a Uj iSimutlanMode lRegresi( Uj iF) n a g n e d n a tl u m i s a r a c e s i s e r g e r l e d o m n a ij u g n e p l i s a H : t u k ir e b i a g a b e s a s e t o p i h Ho β : 1 β= 2=...=βk 0= H1 β : j≠0untukpailngs ediktis atuj n a g n e d F i j u k it s it a t S ɑ=5 %dapa tdisimpulkan n a t a p e c e k u ti a y ) β ( i s e r g e r n e i s if e o k a w h a b h u r a g n e p i k il i m e m r u t a r e p m e t n a d n a k u d a g n e p . p a r e j a y a d p a d a h r e t . b Uj iParsial F i j u ( n a tl u m i s i j u a d a p a n e r a K ) didapa t bahwa p a d a h r e t h u r a g n e p i k il i m e m k a d it ) β ( i s e r g e r n e i s if e o k n e i s if e o k i k i d il e s i d n a k a a y n t u j n a l e s a k a m , p a r e j a y a d a d a p t i j u k it s it a t s n a g n e D . l e d o m a d a p n a k if i n g i s g n a y l e d o m a d a p ) β ( n e i s if e o k a w h a b i u h a t e k i d t a p a d , % 5 = u r a g n e p i k il i m e m g n a y h terhadap daya jerap adalah X ( r u t a r e p m e t 2) ,temperatu rkuadraitk (X22) ,interaks i X ( r u t a r e p m e t n a g n e d n a k u d a g n e p n a t a p e c e k 1X2) . . c Pengamblian Keputusan dengan p-value Dengan p-e u l a v , koeifsien (β ) pada mode l yang memiilk i a d a n a p a r e j n e p p a d a h r e t h u r a g n e p laht emperatur( X2) , X ( k it a r d a u k r u t a r e p m e t 22 )dan interaks ikecepatan X ( r u t a r e p m e t n a g n e d n a k u d a g n e p 1X2.) g n i s a m h u r a g n e p i s a s il a u s i v t a h il e m k u t n U – masing t a h il i d t a p a d s a l e j h i b e l a r a c e s p a r e j a y a d p a d a h r e t l e b a ir a v n a k ij a s i d g n a y 4 n a d 3 r a b m a G a d a p dalam bentuk plo t m u m it p o l e b a ir a V . n a a k u m r e p n o p s e r t o l p n a d r u t n o k X ( n a k u d a g n e p n a t a p e c e k a d a p h e l o r e p i d 1 )1230rpmdan X ( r u t a r e p m e t 2 ) 87C̊ dengan kemampuan daya jerap . % 9 3 4 , 7 9 r a s e b e s n e b r o s d a . 3 r a b m a G Kontu rpengaruh . 2 . 3 KecepatanPengadukandanTemperatur . 4 r a b m a G Respon permukaan pengaruh kecepatan t n a d n a k u d a g n e p emperatur
.
4 K
e
s
i
m
p
u
l
a
n
a p a r e b e b h e l o r e p i d t a p a d i n i n a it il e n e p l i s a h i r a D : t u k ir e b i a g a b e s n a l u p m i s e k . 1 Pada penguijan mode lregres idiperoleh kecepatan h u r a g n e p i k il i m e m r u t a r e p m e t n a d n a k u d a g n e p i r a d s i s e t n i s i d g n a y A 4 t il o e Z p a r e j a y a d p a d a h r e t lfy h s a sawti . . 2 Diperoleh nlia ivairabe lopitmum untuk kecepatan X ( n a k u d a g n e p 1 )1230rpmdant emperatu r(X2 )87oC . % 9 3 4 , 7 9 r a s e b e s p a r e j a y a d n a u p m a m e k n a g n e d n a k u d a g n e p c e k te m pe ra tu r 0 , 1 5 , 0 0 , 0 5 , 0 -0 , 1 -0 , 1 5 , 0 0 , 0 5 , 0 -0 , 1 > – – – – – <70 0 7 75 5 7 80 0 8 85 5 8 90 0 9 95 5 9 p a r e j a y a d n a k u d a g n e p c e k ; r u t a r e p m e t s v p a r e j a y a d f o t o l P r u o t n o C 0 7 0 8 0 9 1 -0 0 9 0 0 1 1 -1 0 1 p a r e j a y a d r u t a r e p m e t n a k u d a g n e p c e k n a k u d a g n e p c e k ; r u t a r e p m e t s v p a r e j a y a d f o t o l P e c a f r u Se T knobiologi Vo.lI II .N 2 : 5o 1 – 90 1 0 7 8 0 2 : N S S I - 5428 9 0 1
