Pontos Catalog 2013

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Ressourcen schonen. Zweifach nutzen.Grauwasserrecycling und WrmerckgewinnungRessourcen schonen. Zweifach nutzen.Grauwasserrecycling und WrmerckgewinnungSave resources. Use them twice.Grey water recycling and heat recovery


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Water our most precious resource.

Water is essential to life. It covers nearlythree quarters of the ear ths surface. Yet,fresh water constitutes barely three percentof our total water resources, with most ofit contained in the glaciers and polar icecaps.

Changes in the global climate havecaused many people to re-think. Today,our key priority in terms of environmen-tal awareness it to be more sparing withnatures resources. And nowhere more so

than in the case of water, the stuff of lifewith which we are all in constant dailycontact.

With Pontos we have taken up thischallenge. Since 2001, Pontos is synony-mous with biological water recycling.

Like our parent company Hansgrohe SE,which we have been integrated in 2011,we are committed to producing ecologicalproducts in harmony with nature.

Our first steps towards biological waterrecycling were taken back in 1994 byKlaus Grohe. From 1997 onwards, theprocess was proven in practice and overthe years, the Pontos AquaCycle develo-ped into the sophisticated, reliable systemwe have today. Even now, it still under-

goes continuous testing under laboratoryconditions in the interests of further im-provement. At the same time, we invest inthe development of new, resource-savingtechnologies. Because we know that ourwater supplies are not limitless.


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This diagram shows just how important itis to use water with care. It indicates thatfour billion people i. e. half the worlds

population will suffer extreme water

shortages by 2025. That is, if we carryon as we do ... And did you know thatwater shortages also slow down economic

growth?

Are we really running out of water?

Water shortage indicator in 2025

> 1 0,9 1 0,8 0,9 0,7 0,8 0,7 0,4 0,5 0,3 0,4 < 0,3

LOWHIGH


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Water a unique and precious resource.

Washingmachine16 litres

Toilet35 litres

Garden9 litres

Shower, bath50 litres

Dishwasher/washing up8 litres

Cooking,drinkingwater6 litres

Cleaning5 litres

Drinking water quality not required

Drinking water quality required

*The average per capita water consumption in

Germany is 129 litres per day.

How much drinking water

do we really need?

Water is too valuable to be wasted. In thefuture, it seems we will no longer be able

to take its constant availability for gran-ted. We are accustomed to use drinkingwater for almost everything even wherewe dont need it. The pie chart illustratesthis clearly: the green segments representactivities for which drinking water qualityisnt strictly necessary.*

Thats where the Pontos AquaCycle comesin. It allows water from showers and baths

to be reused thanks to a purely biologi-cal recycling process with no chemicaladditives.

The Pontos AquaCycle represents a majorcontribution to ecological sustainability. Itreduces water usage and with it watercosts by up to 50 percent, providing uswith an intelligent way of saving waterwithout compromising any of our moderncomforts.


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Water gets a second life.

The Pontos AquaCycle turns bath andshower water into hygienically cleanprocess water. It can then be reusedfor toilet flushes, building cleaning andirrigation. Other advantages of the PontosAquaCycle are:

Biological-mechanical cleaningwithout chemical additives TV-approved quality Consistently high water quality Fully automatic system Closed system Non weather dependant


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1

2 3

5

4

6

Short and sweet:

The process in a nutshell.

1 Firs t a filterremoves coarse particles (e.g. textile fluff

or hairs) from the incoming grey water from the shower

or bath tub.

2 Then the water undergoes the first stage of biologi-

cal treatment. Here, with the supply of atmospheric

oxygen, microorganisms degrade the contaminants in

the water.

3 In the second stage of biological treatment, the

process of the first stage is repeated.

4 In the final stage, the water is disinfectedby using

an UV lampand stored in the process water tank until

re-use.

5 The sediments generated during the biological treat-

ment are automatically removed and conducted into

the drains.

6 If insuffi cient process water is available, the automatic

drinking water back-up ensures supply to the tapping

points.

Grey water recycling using the Pontos AquaCycle:

A reliable process.

The filter unit with electro-

nically controlled back-

flushing of the filter.

The pre-recycling chamber

for pre-treatment and main

recycling chamber for the

2nd stage of the bio-me-

chanical treatment.

The fully automatic sediment ext-

raction system suchs excess sedi-

ments from the biolmechanical

treatment process and conducts

it into the drains.

The automatic drinking water

back-up on demand.

The UV-lamp disinfects the

water, after which it is

odourless and can be

stored for a long period.

The process water cham-

ber stores the water until

re-use.

The pressure pump sup-

plies the treated process

water and supports the

automatic back-flushing

of the filter.

The user-friendly control

unit with self-test function.


A reliable process.








chanical treatment.


back-up on demand.



re-use.


A reliable process.








chanical treatment.


back-up on demand.



re-use.


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It has always been the aspiration of H ansgrohe todesign products in line with ecological cr iteria.And because our element is water, we at Pontos encouraged by Klaus Grohe have been com-paigning for the sustainable use of water since t hebeginning of the nineties. In 1997, initial develop -ments for biological water recycling started to un-dergo practical trials, and these provided the ba-sis for the technology we use in our biologicalgrey water recycling the Pontos AquaCycle.

Sustainability: Grey water recycling

Grey water recyclingrelies on the fact thatone half of our water needs do not require waterof drinking quality: f lushing the toilet, cleaningchores and watering the garden are all taskswhich can be satisfactorily perf ormed with waterof recycled quality.

Added sustainability: Grey water recycling

with heat recovery

The way to save energy as well as water is to take

advantage of heat recovery. Here the heat in wa -ter from the shower and bath is recovered andused again. This saves on the energy for heatingwater and thus reduces CO

2emissions.

Heat recovery and grey water recycl ing

make an important contribution to

sustainable architecture

For those who consider moder n architecture andsustainability to be inextricably linked, heat reco-very and grey water recycling should be an obvi-ous solution. Both systems help to reduce operati-

on costs and attract certificates for sustainableconstruction, which in turn raise the value of aproperty in the long term.

The futurehas begun.


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2

1

E

C

B

D

A

Heat recovery in combination with

grey water recycling

Stratified

storage

tank

Hot watergeneration

Outlet for preheateddrinking water

Grey water inletfrom shower and bath

Inlet for colddrinking water

Circuit 1: Heat recovery

Warm grey water from the shower and bath enters the first stage of the Pontos HeatCycle with biological treatment. The grey water heats the transfer medium

(water), which is pumped through the heatexchanger in the first stage.

The now preheated transfer medium is fedinto a stratified storage tank.

A

B

C

D Fresh, cold drinking water flows through asecond heat exchanger inside the stratifiedstorage tank. Here it is preheated and then fedto the hot water generation.

The cold heat transfer medium is removed fromthe stratified storage tank and pumped throughthe heat exchanger in the first stage of thePontos HeatCycle. The entire process takes

place continuously.

E


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5

3

4

6

Service water supply forconsumption points (WCs,irrigation, cleaning, etc.)

Circuit 2: Grey water recycling

A filter first removes any coarse particles fromthe incoming grey water, such as lint and hairs.

Then the water enters the first stage of thebiological treatment unit. Here microorganismsbreak down the dirt constituents of the water,with atmospheric oxygen being added.

The second stage of biological treatmentinvolves a repeat of the process from the first

stage.

1

2

3

4 In the final step, the water is disinfected withthe aid of an UV lamp and stored in the servicewater tank until it is used again.

The sediment arising during the biologicaltreatment is automatically drained off into thesewage system.

If too little service water is available, theautomatic drinking water refill ensures that the

consumption points receive a reliable supply.

5

6


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Practical application: Heat recovery and grey

water recycling illustrated by a hotel

Due to the high volume of water generated fromshowers and baths, heat recovery with PontosHeatCycle and grey water recycling with PontosAquaCycle make particular sense in large residen-

tial units such as hotels and halls of residence.

Because water from the shower and bath are recyc-led and used a second time with Pontos AquaCycle(e.g. for flushing the toilet), drinking water demand

and effluent volume are both reduced significantly.What is more, using the heat of the water from theshower and bath, can significantly reduce the ener-gy consumption and hence CO2emissions as well.

The illustrations on these pages clearly indicatehow our fully integrated system fits in with the dailyfunctioning of a large property.


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Hot watergeneration

Grey waterinlet

Outlet for preheateddrinking water

Outlet of servicewater to WC cistern,irrigation, cleaning

Inlet for cold

drinking water


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Pontos AquaCyle and HeatCycle

possible fields of application

Grey water

recycling

Heat

recovery

Grey water

recycling +

heat recovery

Dependingonthetempe

rature

oftheincomingdrinking

water,

PontosHeatCycleheatrecovery

cansave1015kWhen

ergyfor

eachm3ofgreywat

erproduced.

Thiscanreducetheover

allener-

gydemandforwaterhe

atingby

upto20%.

Pontos HeatCycle heat recovery can be deployed as a stand-alone unit or in combination with grey waterrecycling.

Combining the two technologies brings benefits for properties that not onlygenerate a high volume of grey water but also have high demand levels forservice water and warm drinking water.

A stand-alone heat recovery unit makes sense where there is only a smalldemand for service water, but where showering means that a large volumeof warm water is both produced and demanded - as is the case in sportsfacilities and swimming baths.

Grey water recycling is worthwhile in properties where water is producedfrom showers and baths and at the same time there is a high demand forservice water (for flushing the toilet, irrigating green spaces, cleaning).


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Pontos AquaCycle and HeatCycle

contribution to green building

certificates

BREEAM is the assessment method of the British Building Research Establishment (BRE) which certifiesbuildings according to environmental aspects. In the category of energy efficiency we are able to scorehighly because up to 20 % of the energy for heating water can be saved with the Pontos HeatCycle. Andthe Pontos AquaCycle manages to secure a full 50 % of the points in the field of water efficiency. TheLEEDaward, which is issued by the US Green Building Council for sustainable construction, gives uscomparable percentage scores.

In its field of Ecological Quality the German Sustainable Building Council (DGNB) awards us up to

10 % of the points. The DGNB Certificate documents environmentally sound, economically efficient anduser-friendly buildings.


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Pontos AquaCycle und HeatCycle

Examples from real life

Hotel for about 40 persons

New Building

Apartment building for about45 persons

New building, Reutlingen, Germany

Student halls of residencefor about 65 persons

New building

Hotel Casa Camper, SpainExisting building, 25 rooms,Barcelona

System in use:Pontos AquaCycle 2500

Recyclable water from:Showers

Water use:Toilets



Water use:Toilets and irrigation



Water use:

Toilets


Recyclable water from:25 showers, wash basins, bidetsand bath tubs

Water use:Toilet flushing and urinals in bothhotel and restaurant


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Recyclable water from:53 showers

Water use:Lawn irrigation, street cleaning,washing of municipal vehicles

System in use:Pontos AquaCycle 3000 HC

Recyclable water from:30 showers

Water use:Toilets

Use of extracted heat:Hot water generation

System in use:Pontos AquaCycle 6000 HC

Recyclable water from:Grey water from 60 showers(up to 250 guests)

Water use:Toilets

Use of extracted heat:Hot water generation

Swimming pool, FranceNew building, Yerres near Paris

Student halls of residencefor 65 personsNew building, Freiburg, Germany

Hotel Mosaic Housewith 236 bedsRestoration and expansion: Prague,Czech Republic


Recyclable water from:35 showers and 32 wash basins

Water use:Toilets, vehicle cleaning, streetcleaning and road salt wetting

Municipal cleaning services,GermanyNew building; Neulnder Kamp,Hamburg


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Documents

Pontos Catalog 2013