What Lies Beneath Healthcare Estates 7 October 2014
32
Envirosafe UK Ltd What Lies Beneath Healthcare Estates 7 th October 2014
Transcript of What Lies Beneath Healthcare Estates 7 October 2014
Envirosa
fe U
K L
td
Wh
at
Lie
s B
en
eath
Healt
hcare
Esta
tes
7th
Octo
ber
2014
Envirosa
fe U
K L
td
Co
nte
nt
�In
tro
du
cti
on
to
th
e s
pe
ak
er
�G
RP
tan
ks
�S
teri
lisati
on
tech
niq
ues
�P
seu
do
mo
nas A
eru
gin
osa in
new
syste
ms
�Q
uesti
on
s
Envirosa
fe U
K L
td
Da
vid
Ta
mb
lyn
�B
SC
Ho
ns.
Deg
ree i
n C
hem
istr
y &
Man
ag
em
en
t
�5 Y
ears
as a
Ch
em
ical W
ate
r T
reatm
en
t R
ep
–esp
. S
team
Bo
ilers
in
Ho
sp
itals
.
�6 Y
ears
pre
do
min
an
tly C
om
merc
ial
Wate
r T
reatm
en
t –
Leg
ion
ell
a C
om
pli
an
ce
�3 Y
ears
-C
om
merc
ial
& I
nd
ustr
ial W
ate
r T
reatm
en
t
�8 Y
ears
MD
& C
on
su
ltan
t fo
r E
nvir
osafe
UK
Ltd
–W
ate
r R
isk A
ssessm
en
ts a
nd
Co
nsu
ltan
cy.
Envirosa
fe U
K L
td
Wh
y G
RP
Tan
ks?
Envirosa
fe U
K L
td
Wh
y G
RP
Tan
ks?
Envirosa
fe U
K L
td
Wh
y G
RP
Tan
ks?
Be
fore
Afte
r
Envirosa
fe U
K L
td
Wh
y G
RP
Tan
ks?
Mo
uld
gro
win
g in
po
orl
y m
ixe
d p
ain
t
Envirosa
fe U
K L
td
Typ
es o
f G
RP
Tan
ks
Ho
t P
resse
d
Se
ctio
na
l
Ha
nd
la
id-u
p
on
e p
iece
Envirosa
fe U
K L
td
Pro
ble
ms w
ith
GR
P T
an
ks
Ea
rly e
xa
mp
les b
led
se
ala
nt a
nd
co
uld
le
ak
Re
su
lte
d in
re
co
atin
g w
ith
fle
xib
le p
ain
t
Envirosa
fe U
K L
td
Pro
ble
ms w
ith
GR
P T
an
ks
Mild
Ste
el B
olts –
ca
usin
g
mo
st o
f th
e d
eb
ris in
th
e ta
nk!
Ha
lf p
lastic c
oa
ted
bo
lts –
wh
ere
’s th
e lo
gic
?
Envirosa
fe U
K L
td
Pro
ble
ms w
ith
GR
P T
an
ks
Co
nce
ale
d S
tru
ctu
res
DH
EF
A/2
01
3/0
04
HS
G2
74
Pa
rt 2
Fig
2.1
2 M
od
era
te
Ris
k
Re
pla
ce
me
nt w
ith
S
tain
less S
tee
l S
up
po
rts
Photo
By e
xpre
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ate
rtanks.c
o.u
k
Envirosa
fe U
K L
td
Pro
ble
ms w
ith
GR
P T
an
ks
Gel C
oat
Fail
ure
–H
SG
274 P
2. F
ig 2
.12 H
igh
Ris
k
Ta
nk in
sta
lled
in
2
01
3
Ge
l co
at fa
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in
20
13
o
n s
ide
ha
tch
on
ly
Envirosa
fe U
K L
td
Pro
ble
ms
wit
h G
RP
Ta
nk
sG
el C
oa
t F
ailu
re
On
e S
ectio
n is fin
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e a
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ce
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in
cysts
Envirosa
fe U
K L
td
Pro
ble
ms
wit
h G
RP
Ta
nk
sG
el C
oa
t F
ailu
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On
e p
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ta
nk –
co
rne
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fte
n fa
il d
ue
to
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inco
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ten
t b
rush
a
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el co
at re
sin
or
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t p
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he
n r
olli
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t th
e a
ir b
etw
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n la
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f fib
reg
lass.
Bu
bb
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/blis
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d s
urf
ace
is
the
fir
st sig
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sm
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Envirosa
fe U
K L
td
Ge
l C
oa
t F
ail
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On
e m
ec
ha
nis
ms
of
failu
re
Envirosa
fe U
K L
td
Ge
l C
oa
t F
ail
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Wh
y s
ho
uld
we
ca
re?
Envirosa
fe U
K L
td
Ge
l C
oa
t F
ail
ure
Wh
y s
ho
uld
we
ca
re?
Envirosa
fe U
K L
td
Ne
ma
tod
es
& b
iofi
lm
Envirosa
fe U
K L
tdTa
nk
Cle
an
ing
�N
atu
rall
y,
wh
en
faced
wit
h w
orm
s s
wim
min
g a
rou
nd
in
yo
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co
ld w
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r sto
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an
k, th
e f
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resp
on
se i
s
to c
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th
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an
k.
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nfo
rtu
nate
ly w
e f
ou
nd
th
at
the c
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(an
d w
orm
s)
were
vis
ibly
back w
ith
in 2
weeks.
�C
hlo
rin
ati
on
tri
ed
at
do
ub
le t
he r
eco
mm
en
ded
co
ncen
trati
on
of
ch
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ne f
or
do
ub
le t
he t
ime
(>100m
g/l
fre
e c
hlo
rin
e f
or
2 h
ou
rs)
–cysts
rem
oved
fr
om
th
e t
an
k s
urf
ace p
rio
r to
ch
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nati
on
.
�N
em
ato
de w
ith
in t
he b
iofi
lm s
till
ali
ve u
p t
o 3
6 h
ou
rs
in 1
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g/l
ch
lori
ne!
Envirosa
fe U
K L
td
BS
85
58
:20
11
/ H
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28
4 P
art
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01
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on
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nta
ct
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rio
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m r
es
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al
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e
ch
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ne
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as
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t th
e e
nd
of
the
co
nta
ct
pe
rio
dm
g/L
3.1
16
:00
1.9
51
0:0
03
10
05
:00
6
15
03
:20
9
20
02
:30
12
25
02
:00
15
30
01
:40
18
40
01
:15
24
50
01
:00
30
Envirosa
fe U
K L
td
BS
85
58
:20
11
/ H
SG
28
4 P
art
2 2
01
4C
hlo
rin
ati
on
�T
he c
hlo
rin
e c
on
tact
tim
e t
ab
le w
as d
eri
ved
fro
m
testi
ng
th
e e
ffecti
ven
ess o
f ch
lori
ne o
f fr
ee f
loati
ng
b
acte
ria i
n a
lab
ora
tory
en
vir
on
men
t.
�H
un
dre
ds o
f p
ap
ers
have b
een
wri
tten
, h
igh
-lig
hti
ng
th
e p
oo
r p
erf
orm
an
ce o
f ch
lori
ne a
gain
st
bio
film
s.
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he w
ate
r tr
eatm
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t in
du
str
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as s
pen
t th
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ast
20+
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ad
vo
cati
ng
alt
ern
ati
ves t
o c
hlo
rin
e d
ue t
o its
sh
ort
co
min
gs.
�B
rom
ine, am
mo
niu
m b
rom
ide, ch
lori
ne d
ioxid
e &
h
yd
rog
en
pero
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e h
ave a
ll b
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used
to
rep
lace
ch
lori
ne (
on
ly t
he latt
er
2 in
dri
nkin
g/p
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ble
wate
r).
Envirosa
fe U
K L
td
Lo
w-t
ec
h b
ioc
ide
co
mp
ari
so
n s
tud
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e t
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ad
N
em
ato
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rst
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ted
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N
em
ato
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28
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78
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ne
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00
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urs
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lox
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rou
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g/l
20
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urs
78
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Aq
ua
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at
Pe
rox
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il 5
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wa
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n T
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tab
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ur
78
Ho
urs
Envirosa
fe U
K L
td
Ta
nk
Cle
an
ing
-F
ield
Tri
al
�P
ero
xysil
50 o
n 4
tan
ks a
t 1000m
g/l
fo
r 16 h
ou
rs.
�T
he t
an
ks w
ere
cle
an
ed
(cysts
were
rem
oved
) p
rio
r to
ch
lori
nati
on
to
exp
ose t
he G
RP
su
rface t
o t
he
bio
cid
e.
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his
str
en
gth
of
bio
cid
e is a
dvo
cate
d f
or
co
oli
ng
to
wers
wh
ere
bio
film
s a
re o
ften
pre
sen
t.
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ne t
an
k w
as p
oo
rly b
ala
nced
an
d c
ysts
reg
rew
w
ith
in a
mo
nth
(ta
nk w
ate
r w
as a
t 25°C
)
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em
ain
ing
3 t
an
ks a
re m
uch
im
pro
ved
bu
t n
ot
100
%
cle
ar
aft
er
1 y
ear.
Envirosa
fe U
K L
tdTa
nk
re
co
ati
ng
Be
fore
Afte
r £
40
00
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ette
r b
ut n
ot 1
00
%
Envirosa
fe U
K L
td
Su
pp
lem
en
tary
Do
sin
g
�C
hlo
rin
e D
ioxid
e is w
idely
used
in
ho
sp
itals
to
su
pp
ort
th
e w
ate
r h
yg
ien
e r
eg
ime, esp
ecia
lly a
s
do
wn
serv
ice c
hlo
rin
ati
on
s a
re o
ften
im
pra
cti
cal.
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he r
esu
lts s
een
so
far
are
vari
ab
le. W
here
a g
oo
d
(po
ssib
ly a
bo
ve p
ota
ble
level)
reserv
e i
s m
ain
tain
ed
th
e c
ysts
are
co
ntr
oll
ed
. W
here
ClO
2 r
eserv
es a
re
bo
rderl
ine c
ysts
may r
efo
rm a
fter
cle
an
ing
.
Envirosa
fe U
K L
td
Ps
eu
do
mo
na
s A
eru
gin
os
a &
ne
w i
ns
tall
ati
on
dis
infe
cti
on
�B
ack i
n 2
009 w
e s
tart
ed
wo
rkin
g w
ith
Ho
mert
on
H
osp
ital &
th
e H
PA
fo
llo
win
g t
he r
efu
rbis
hm
en
t o
f th
eir
SC
BU
ward
.
�T
he p
lum
bin
g c
on
tracto
r h
ad
fail
ed
to
carr
yo
ut
an
ad
eq
uate
ch
lori
nati
on
of
the p
ipew
ork
an
d a
bio
film
h
ad
been
all
ow
ed
to
beco
me e
sta
bli
sh
ed
.
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ork
ing
wit
h t
he H
PA
we a
gre
ed
on
wh
at
levels
of
pseu
do
mo
nas a
eru
gin
osa w
ere
deem
ed
to
be
accep
tab
le –
these l
evels
were
th
en
ad
op
ted
by t
he
HP
A a
nd
have s
ince b
eco
me H
TM
04 a
dd
en
du
m.
Envirosa
fe U
K L
td
Ps
eu
do
mo
na
s A
eru
gin
os
a &
ne
w i
ns
tall
ati
on
dis
infe
cti
on
�C
hlo
rin
ati
on
No
1 -
>80m
g/l
ch
lori
ne f
or
1 h
ou
r•
Re
su
lts w
ere
po
or
aft
er
5 d
ays.
�C
hlo
rin
ati
on
No
2 -
>80m
g/l
ch
lori
ne f
or
1 h
ou
r, a
ll
pla
sti
c f
ilte
rs r
em
oved
fro
m M
ark
wik
IR
tap
s a
nd
b
oil
ed
.•
Re
su
lts d
ete
rio
rate
d a
fte
r 2
we
eks (
still
wo
rkin
g o
n <
80
cfu
PA
pe
r m
l b
ein
g a
cce
pta
ble
)
�C
hlo
rin
ati
on
No
3 -
>80m
g/l
ch
lori
ne f
or
2 h
ou
rs,
ou
tlets
bag
ged
an
d s
oaked
fo
r >
1 h
ou
r•
Fre
nch
Lim
its a
do
pte
d –
pse
ud
om
on
as le
ve
ls s
till
too
hig
h
on
co
ld s
erv
ice
s
Envirosa
fe U
K L
td
Ps
eu
do
mo
na
s A
eru
gin
os
a &
ne
w i
ns
tall
ati
on
dis
infe
cti
on
Envirosa
fe U
K L
td
Ps
eu
do
mo
na
s A
eru
gin
os
a &
ne
w i
ns
tall
ati
on
dis
infe
cti
on
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ark
wik
au
to f
lush
ing
sto
pp
ed
du
e t
o N
urs
es
co
mp
lain
ts
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lush
ing
po
ints
in
sta
lled
beh
ind
IP
S p
an
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.
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V t
ap
s p
rop
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to
Ste
ri-s
pra
y a
t C
om
bati
ng
L
eg
ion
ell
a c
on
fere
nce 2
011
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ew
UV
-ta
ps d
evelo
ped
& t
este
d
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elf
ast
SC
BU
hit
s t
he n
ew
s
�F
irst
batc
h o
f U
V-t
ap
s d
ivert
ed
to
Belf
ast
by D
H.
Envirosa
fe U
K L
td
Ps
eu
do
mo
na
s A
eru
gin
os
a &
ne
w i
ns
tall
ati
on
dis
infe
cti
on
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MV
tap
s r
em
oved
fro
m t
he S
CB
U o
n s
ite a
nd
re
pla
ced
wit
h o
ld-f
ash
ion
ed
mix
ers
.•
Re
su
lts im
pro
ve
d,
bu
t still
no
t <
1cfu
/10
0m
l
�C
hlo
rin
ati
on
No
4 –
Ho
t w
ate
r cro
ss l
inked
to
co
ld f
or
the w
ho
le w
ard
. >
100m
g/l
ch
lori
ne f
or
2 h
ou
rs @
60°C
p
lus s
up
ple
men
tary
ClO
2d
osin
g f
ixed
.
�R
esu
lts a
ll c
lear.
�N
ew
sta
nd
ard
ad
op
ted
fo
r all
refu
rbis
hm
en
ts o
n s
ite.
Wh
ere
po
ssib
le a
ll s
erv
ices a
re c
hlo
rin
ate
d a
t h
igh
te
mp
era
ture
s.
Envirosa
fe U
K L
td
Ps
eu
do
mo
na
s A
eru
gin
os
a &
ne
w i
ns
tall
ati
on
dis
infe
cti
on
-C
on
clu
sio
ns
�C
hlo
rin
e o
n its
ow
n c
an
no
t p
en
etr
ate
Pseu
do
mo
nas
Aeru
gin
osa b
iofi
lms w
ith
in a
pra
cti
cal ti
me f
ram
e.
�T
he c
om
bin
ati
on
of
therm
al d
isin
fecti
on
an
d c
hlo
rin
e
help
s r
em
ove g
rease &
oil
s f
rom
new
pip
ew
ork
th
at
ch
lori
ne a
lon
e c
an
no
t.
�T
he c
om
bin
ati
on
of
therm
al d
isin
fecti
on
an
d c
hlo
rin
e
is v
ery
eff
ecti
ve a
t re
mo
vin
g b
iofi
lms.
Envirosa
fe U
K L
td
�A
ny Q
uesti
on
s?
