d r ai n T R A D E R
B ef or e t h e L a n di a mi x ers w er e i nst all e d at Milt o n, w h er e t h e
gr e e n er y at t h e e d g es s h o ws t h at t h e t a n ks n e e d e d pr o p er mi xi n g..
“ T h e sl u d g e o n o ur b elt w as v er y i n c o nsist e nt”, c o m m e nt e d Vi ct or D err.
“ T h e b elt w o ul d a p p e ar t o b e r u n ni n g fi n e, t h e n t h er e’ d b e a w as h o ut wit h w at er, f oll o w e d b y a v er y h e a v y p o c k et of sl u d g e.
T his m e a nt w e c o ul d n’t r e all y l e a v e it u n att e n d e d b e c a us e s o o n er or l at er w e k n e w it w as g oi n g t o str atif y”.
‘ 1 0 0 p e r c e nt b e t t e r’ T h e a ns w er a g ai n, as wit h t h e bi ol o gi c al pr o c ess, w as t o g et e v er yt hi n g mi x e d – pr o p erl y. A fift h s u b m ersi bl e mi x er fr o m L a n di a w as i nst all e d i n t h e sl u d g e d e c a nt t a n k t o h o m o g e ni z e t h e sl u d g e pri or t o d e w at eri n g.
“ Si n c e w e i nst all e d a L a n di a mi x er as p art of t h e d e w at eri n g pr o c ess, t h e b elt pr ess is 1 0 0 p er c e nt b ett er”, a d d e d D err.
b ut w e w a nt e d a m or e c e ntr al pl a ci n g, r at h er t h a n h a v e t h e m a n c h or e d o n t o t h e c o n cr et e w alls at t h e si d e.
H e c o nti n u e d: “ T o pr o vi d e us wit h t h e o pti m u m s ol uti o n, L a n di a d esi g n e d a n d b uilt us a g ui d e-r ail a n d r etri e v al s yst e m, c o m pl et e wit h a w al k-i n- c a g e s er vi c e pl atf or m. O ur t e a m t o o k c ar e of t h e i nst all ati o n, w hilst L a n di a w er e i n att e n d a n c e f or a dr y t est of t h e mi x ers. E v er yt hi n g fit t o g et h er, wit h n o pr o bl e ms. T h e n e w L a n di a mi x ers ar e all r u n ni n g v er y w ell. W e h a v e a d e fi nit e i m pr o v e m e nt i n v ol u m es, wit h all c h a n n els n o w pr o p erl y mi x e d a n d l o o ki n g g o o d. It w as a m aj or a d v a nt a g e t o b e a bl e t o c arr y o ut t h e i nst all wit h o ut h a vi n g t o st o p t h e fl o w.”
T h e u p gr a d e at Milt o n ( pri m aril y f u n d e d b y t h e U nit e d St at es D e p art m e nt of A gri c ult ur e a n d s u p pl e m e nt e d b y a d diti o n al gr a nts t hr o u g h H 2 O P A, t h e Gr o wi n g Gr e e n er i niti ati v e a n d P A C o ns er v ati o n W or ks) h as e x p a n d e d w ast e w at er c a p a cit y fr o m 3. 4 2 M G D t o 4. 2 5 M G D a n d als o d o u bl e d its or g a ni c c a p a cit y t o n e arl y 5 0, 0 0 0 p o u n ds p er d a y.
T h e d e w at eri n g pr o c ess of r e m o vi n g sl u d g e fr o m t h e r e a ct ors i nt o a h ol di n g t a n k cr e at e d a n ot h er iss u e f or t h e pl a nt t e a m at Milt o n.
3 8 d r ai n T R A D E R | M ay 2 0 2 0 | w w w. dr ai ntr a d erlt d. c o m
“It n o w t a k es c ar e of its elf, as it s h o ul d. B ef or e w e h a d t h e L a n di a mi x er, w e w er e r u n ni n g at 5 0 g al/ mi n – a n d h a vi n g t o p ut i n l ots of ti m e, b ut n o w, wit h o ut t h e pr e vi o us v ort e x, w e’r e u p at 8 5 g al/ mi n, wit h n o si g n of t h os e w as h o uts or t h e bi g p o c k ets of sl u d g e”.
As a b y- pr o d u ct of t h e a n a er o bi c r e a cti o n, t h e r e a ct ors cr e at e v al u a bl e bi o g as c o nt ai ni n g a p pr o xi m at el y 7 5 % m et h a n e, w hi c h is b ur n e d i n t w o 1, 0 0 0 k W g as e n gi n es t o g e n er at e el e ctri cit y - s u ffi ci e nt t o o ffs et t h e p o w er t h e w ast e w at er tr e at m e nt pr o c ess utili z es. T his h el ps Milt o n r e d u c e a n n u al el e ctri cit y c osts b y s elli n g e x c ess el e ctri cit y t o t h e l o c al utilit y. T h e u p gr a d e als o i n cl u d e d t h e i nst all ati o n of a b elt dr y er, w hi c h utili z es e x c ess h e at fr o m t h e g e n er at ors t o dr y t h e r e m ai ni n g bi os oli ds.
‘ S u p e ri o r mi xi n g’
C o m p ar e d t o a er o bi c w ast e w at er tr e at m e nt, t h e l o w-r at e r e a ct ors pr o d u c e a p pr o xi m at el y 6 0 % l ess sl u d g e. T his, i n c o m bi n ati o n wit h t h e bi os oli ds dr yi n g, h as dr asti c all y l o w er e d sl u d g e dis p os al c osts a n d s a v e d v al u a bl e l a n d fill s p a c e.
Vi ct or D err c o n cl u d e d: “ T h e L a n di a mi x ers h a v e b e e n ess e nti al f or t h e Milt o n W W T P st a ff t o o pti mi z e t h e pl a nt’s o p er ati o n b y pr o vi di n g s u p eri or mi xi n g a n d r e d u ci n g st a ff ti m e ass o ci at e d wit h d e w at eri n g”.
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