Aqua Medic Ocean Runner 3500 Bedienungsanleitung

Operation manual

under counter filter system

Marin 1.000

4 –stage water filter system for marine aquaria from 400 to 1.000 l.

With the purchase of this filtration system you have selected a top quality product. It

has been specifically designed for aquaristic purposes and has been tested by

professionals.

With this unit - if used correctly - you are able to reduce organic substances and

other pollutants of your aquarium water to non-toxic levels.

The filtration system consists of a set of 3 biological trickel filters, a motor driven

protein skimmers with postfilter for activated carbon and an anaerobic denitrifying

filter.

The filtration system Marin 1000 convinces by its compact and functional design and

its clear arrangement.

1. Description of the system

The water is flowing from the aquarium via an overflow chamber or another

overflow device into the biological trickle filter modules. Here the water is

treated biologically. The trickle filter modules are filled with Bactoballs. Their

special shape creates a lardge surface for settling of bacteria. Below the trickle

filter modules a layer of filter sponge is placed.. The task of this layer is mainly

to reduce the noise of dripling water falling from the trickle filters into the clear

water chamber. Apart of the inflowing water, adjusted by a valve, is directed to

the protein skimmer. From the clear water chamber the water is driven to the

circulation pump. This pump is set up dry, besides the filter. The pump is not

included. We recommend to use the Ocean Runner 3500 with

a capacity of 3500 l/h. A small bypass of the water ( 1 – 3 l/h) is delivered to the

Nitratreductor.

2. Components of the filter system

The undercounter filter system is placed in a separate glass tank with two

sliding doors.

dimensions: 56 x 36,5 x 58 cm. On the long side, you have to add minimum 15

cm for piping. The filter consists of the following components:

- Glass tank, dimensions 56 x 36,5 x 58 cm to take the filter modules

- 3 trickle filter modules, filled with Bactoballs

- 1 Nitratreductor

- 1 protein skimmer with venturi pump

set up:

view from

top

1. Inlet 5. Water inlet with drip counter (Nitratreductor)

2. Trickle filter modules 6. protein skimmer

3. Nitratreductor 7. post filter /activated carbon

4. Circulation pump 8. water outlet

2.1 Trickle filter modules

The water flowing down from the aquarium is divided equally to the 3 trickle

filter modules and the protein skimmer. The upper part of the modules contains

the trickle plate. The plate is covered with a lid to avoid splashing. On the trickle

plate, the water is filled up for some mm and trickles then down through the

slits, evenly distributed over the whole plate. This set up contains no moving

parts and is maintenance free and safe for failures. The water trickled down

through a 20 cm high column of Bactoballs. A bacteria layer, the so called

biofilm is formed on the surface of the Bactoballs The bacteria remove waste

substances from the water, especially Ammonia and Nitrite. These nitogen

compounds are oxidised to Nitrate. The trickel filter modules are mounted

above a layer of filter sponge. Here, the noise is minimised and particles, as

dead bacteria falling from the Bactoballs are removed from the water.

set up of the trickle filter modules (side view):

1. Filtertank

2. Water outlet from the

aquarium

3. inlet pipes

4. lid

5. trickle plate

6. Bactoballs

7. support

8. filter sponge

9. grid

10. clear water chamber

2.2. Protein skimmer

The protein skimmer is supplied with water from a bypass of the water inlet. The

bypass can be regulated with the adjustion valve. It should always be adjusted

in a way, that dry foam is produced and pushed into the foam cup.

The complete foam cup can be removed for cleaning. It is also possible to turn

the bayonet and to remove the whole lid of the skimmer. This is necessary to

clean the interior of the reaction pipe.

Description

The Turboflotor 1.000 consists of the following parts:

the original skimmer (foam cup and top cover, reaction-pipe, air injection nozzle),

the post-switched trickling filter module inclusive entrance chamber, a trickling

chamber

(lying underneath) with trickle plate which is filled with Bactoballs

and

a venturi pump inclusive Needle wheel.

Fig. 1: Turboflotor 1000

Protein skimming is a way of physical water treatment. It uses a phenomenon known

from our daily experience: the adsorption of surface active substances to air water

layers. If we give a drop of oil on a water surface, it will form a thin film with a

thickness of only one molecule. Surface active compounds like proteins behave in

the same way. The Turboflotor 1000 with its air bubbles creates a huge water

surface, where the waste substances can attach to.

These air bubbles are pushed into the reacton pipe, in a way, that they have a long

retention time in the counter current. Enriched with organic substances, they rise to

the top and form a strong foam, that is dehydrated and pushed into the collection

cup. With this method, organic waste can be removed from the aquarium water -

before they are integrated into the biological waste treatment cycle.

1. lid

2. foam cup

3. Reaktion pipe

4. outlet

5. trickle plate

6. Bactoballs

7. water outlet

8. venturi pump

9. air injection nozzle

Working principle

The venturi pump of the Turboflotor 1000 sucks the water out of the filter chamber,

mixes it in the pump housing with air which is sucked and cut into small bubbles by

the Needle wheel. This water/air mixture is pumped into the

reaction pipe of the protein skimmer where the organic substances are taken up by

the bubbles. So a foam is formed which is pushed into the foam cup. The cleaned

water flows out of the bottom of the skimmer and is leaded via two transparent pipes

at the skimmer outside into the entrance chamber of the post-switched trickling filter.

From here, the water flows via the trickle plate and the Bactoballs back into the filter

chamber. The Bactoballs act as biological filter. On the surface of the Bactoballs

settle bacteria which reduce non-skimmed organic substances as well as ammonium

and nitrite.

Set-up

The Turboflotor 1000 has to be connected at the suction side of the pump, at the air

injection nozzle via a plastic pipe (25 mm diameter). The outflow happens freely into

the filter chamber.

The Turboflotor 1000 must be placed in a filter chamber below the aquarium. It is

not suitable for a dry set-up near the aquarium or near a filter chamber. The water

level in the filter chamber has to be 10-15 cm for a trouble-free operation. When it is

used within the filtration systems Reef 500 or Reef 1000, the optimum water level is

guaranteed.

Starting

The Turboflotor is placed into the filtration tank. If the venturi pump shall suck the

water from a separate chamber - like in the filter system Reef 1000, the plumbing of

the suction side has to be performed. If the water level is in the right range (10-15

cm), the Turboflotor can be started by plugging the venturi pump in. The pump is

now pressing water into the reaction pipe of the skimmer. At the same time, an

underpressure is created at the suction side of the pump and air is sucked in. As long

as the water level in the filtration tank is in the right range, the relation between air

and water is adjusted correctly. If noises arise at the air suction pipe, put a silencer

on it.

The air is cut into smallest bubbles due to the action of the needle wheels. In

addition, this constuction eliminates a great portion of the noise.

The quantity of sucked air should be adjusted so, that 75 % of the reaction pipe are

filled with air bubbles. After the first start, it takes some hours before the first foam is

pushed into the collection cup. This is due to a reaction between the surface of the

acrylic glass and the aquarium water. An equilibrium of electrical loadings must take

place. After 24 hours latest, the foam should be pushed evenly into the collection

cup. The quantity of liquid and organic substances depends on the pollution of the

aquarium.

Maintenance

The collection cup should be cleaned regularly (daily or weekly, depending on the

organic load). The reaction pipe of the skimmers needs to be cleaned only once or

twice a year. Also the venturi pump should be cleaned in those intervals. For doing

this, the pump has to be removed and the complete pump housing and the Needle

wheel flushed with clean water. The same should be done with the air injection

nozzle. The biological filter - the trickle unit inclusive Bactoballs - is maintenance-

free.

Failures

Failures may arise if the relation between sucked air and water is not in the right

range. The reasons could be:

- The water level in the filtration tank or the chamber, where the pump gets its water

from,

is too low or too high. It should be maintained between 10 and 15 cm.

- The air injection nozzle is clogged or the pump housing with the needle wheel is

polluted. In

this case remove, clean and insert them again.

Especially in case of calcareous aquarium water, the nozzles get often clogged. If it

cannot

removed mechanically, the whole nozzle should be put into vinagre or citrus acid

for a night.

- The connection between the suction side of the pump and the air injection nozzle is

loose.

Then the pump sucks the water aside the air injection nozzle. Check if the pump is

correctly fixed on the bottom plate and screw it, if necessary.

2.3 Nitratreductor

Product description

The Nitratereductor consists of the reaction vessel (Height = 50

cm,

Volume app 10 l).

The reaction vessel is filled with Bactoballs. In the top of the filter,

the circulation pump (recirculation pump with a capacity off 300 l/h ) is placed.

One little box with Denimar tablets to feed the bacteria.

Nitratereductor

1. inflow with drip counter

2. opening for redox electrode

3. opening for feeding

4. Bactoballs

5. pump suction

6 circulation pump

7. outflow

Fig. :Nitratreductor

Theory

Nitrate is coming into the aquarium via 2 different paths:

- with the tap water, with every water change or with the replacement of the

evaporated water

- by biological reactions in the aquarium.

These biological reactions are responsible for the farmost biggest part of the increase

of the nitrate level.

How is nitrate produced in the aquarium?

When the animals are fed with dried, living or frozen food, proteinaceous substances

get into the aquarium. These are the basics of the diet for the animals. A big part of

the nitrogen, from the food is however excreted into the water. This nitrogen is

metabolised by bacteria, living in the aerobic filter via the toxic intermediate

substances ammonium and nitrite to the less toxic nitrate. These biolochemical

reactions take place in the presence of oxygen:

The bacteria Nitrosomonas oxidises Ammonia to Nitrite, the bakterium Nitrobacter

the Nitrite to Nitrate.

Ammonium + Oxygen ----- > Nitrite + Oxygen ----> Nitrate

(Nitrosomonas) (Nitrobacter)

In most aquaria, nitate is the end product of bacterial metabolism and accumulates in

the water.

Only higher water plants and algae are able to remove this nitrate from the aquarium

water.

What is the effect of nitrate in the aquarium?

1. Overfertilisation/Eutrophication. The aquarium is overfertilised, the algal growth

increases and cannot be controlled any more.

2. Toxic effects to the animals. Many invertebrate animals in sea water tanks are very

sensitive to higher nitrate levels.

Working principle of the Nitratereductor

In the Nitratereductor the water is treated anaerobically. In the

absence of oxigen, many bacteria are able to use nitrate as a substitute for oxigen for

their metabolism.

2NO3-------> N2+ 3 O2

2 Nitrate -> 3 nitrogen gas + 3 oxygen

The oxygen is used for the metabolism, the nitrogen is excreted into the water.

Nitrogen gas is a natural compound of the water and total harmless.

It is however necessary to increase the metabolism of the bacteria, so that they can

reduce enough nitrate. For this reason, the nitrate removing bacteria have to be fed

with organic substances. The tablet feed Denimar contains organic substances, that

can be used by the bacteria totally. The only waste product is CO2

The flow rate through the Nitratereductor is very slow. This is a main difference to

other aquarium filters, where the water is often treated once per hour or even more

often. The water in the Nitratereductor should have a retention time of 2 -4 hours. It

is however sufficient to treat it once per week. If the filter is adjusted correctly, the

water leaves the filter nearly free of nitrite and nitrate.

Description of the Nitratreduktor

The Nitratereductor consists of a reaction vessel of 10 l volume.

To provide surface material for the bacteria, the filter is filled with

Bactoballs.They create an ideal microclimate for denitrification.

To avoid dead zones, the water is recirculated internally in the Nitratereductor. A

recirculation pump is placed in the top.

In denitrifying filters, esp in units, where the water has to pass through a long way, it

can occur, that there is no even flow in the filter. Zones with a very low redoxpotential

are created, where hydrogensulfide is produced.( the filter starts to smell bad) On the

other side, zones with a rather high flow may arise, where nitrate is reduced onla to

nitrite. In each case the conditions vary in the different zones of the filter and it is

nearly impossible to find ist right working point.

These unpleasant effects are avoided by the construction of the

Nitratereductor. The recirculation ensures a complete mixing and the same redox

potential in the whole filter. Zones with very low redox potential and production of

hydrogen sulfide are avoided.

The redox potential can be used for the control of the filter. The effectivity and the

reliability of the filter can be increased .

Connections:

The following connections are located in the top of the Nitratereductor:

1. Inflow: Here, you can connect a 6 mm air tube. At the inflow, you find a drip

counter and a set valve. Here you can adjust the flow rate. The ideal value is app

2 - 4 l/h

2. Feeding. Through this opening you can feed the Denimar tabs to enhance the

denitrification.

3. Redoxelektrode. Through this opening, you can put the redox probe (s. options)

4. Outflow. The water outlet is located at the side of the filter. Here, you can connect

a 6 mm air tube.

Set - Up:

The Nitratereductor is not a hermetically sealed system. The top is not tightly

fastened, so that the produced gas ( nitrogen and CO2)can escape.

The Nitratereductor has to be placed in a way, that the water can flow off freely -

either direcly back into the aquarium or into the filtration chamber. In a seawater

aquarium it is an advantage, if the effluent is flowing to the influent of the protein

skimmer or the trickling filter. Inthe protein skimmer, the water is saturated with

oxigen, before it comes back into the aquarium.

Inflow. The inflow into the reductor, can be realised as a bypass from the main

recirculation pump. The flow rate is adjusted with the valve and the drop counter.

Starting.

Before starting, the Nitratereductor is filled with aquarium water and controlled for

leaking. The internal recirculation pump can be switched on.

Connection to an existing aquarium

If a Nitratereductor is connected to an existing aquarium, with a rather high nitrate

level, the inflow of aquarium water should not immediately be started. The bacterial

growth is enhanced by the addition of 4 tablets of Denimar. If, after 8 - 14 days, the

nitrite has dissapeared from the reductor - a residual concentration of nitrate is

harmless, the water flow can be switched on.

Connection to a new tank

If connected to a new aquarium, the bacteria don´t have to be fed in the first 4 weeks,

as the nitrte forming bacteria Nitrosomonas and Nitrobacter need this time to

develope and to oxidise ammonia to nitrate.

Feeding The feeding has to be adjusted to the nitrate loading of the aquarium. It can

be controled with a redox probe ( see options) In a normal loaded tank, one

tablet/day is suffucient. It is also possible to feed several ( up to 5) tablets at a time.

In this case the filter does not need to be fed for some days.

After some time, a slimy bacterial biomass is formed in the Nitratereductor. This a

normal process. A high bacteria population ensures a high removal rate of nitrate.

Feeding with Deniballs.

Deniballs are made of a biodegradable plastic material. This

plastic material is also produced biologically - the raw material is produced by

bacteria. This new plastic material is completely biodegradable. It can be used by

denitrifying bacteria in the Nitratereductor to remove nitrate. The Deniballs suply

the surface area and the food for the bacteria at the same time. This means, that a

Nitratereductor filled with Deniballs has not to be fed for a longer period - up to one

year. The quantity of Deniballs, which are necessary for a Nitratereductor depends

on the loading of the tank. For a normal loading, 1.5 - 2 l are enough. The rest of the

filter is filled with the standard Bactoballs. The Deniballs need –especially in a

seawater tank - a longer period to reach their full capacity.

Maintenance.

1. Control of the flow rate

The flow rate through the filter has to be checked regually. The optimum is between

2 - 4 l/h.

2. Recirculation pump. The recirculation pump has to be controlled regually for

clogging. The pump housing has to be opened and the magnet with the needle wheel

are removed. Both is cleaned under fresh water and mounted again.

3.Cleaning If the bacterial biomass has increased after some years, the Bactoballs

can be removed, cleaned with aquarium water and filled in again.

4. Renewal of Deniballs. The Deniballs have to be refilled/replaced once per year.

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