Biofilter systems

Likusta Umwelttechnik GmbH - Germany biofilter systems are designed as single or multistage units according to the actual requirement for instance with a preset humidifier, bio- or chemical scrubber.

Due to close cooperation with universities, and research centers, latest scientific knowledge is available during process engineering. Applications of environmentally friendly systems for biological gas treatment increase steadily nowadays. The polluted gas passes through a pourus carrier. The micro organisms settling on the organic carrier convert air pollutants into CO2 and water.

Wet Scrubber

Liku-Tech / Likusta Umwelttechnik GmbH - Germany offers Chemical based wet Scrubbers that are efficiently and effectively designed to remove gas pollutants. Often these pollutants are chemicals such as hydrogen sulfide, ammonia, chlorine or sulfur compounds. Chemical Scrubbers work by dissolving or absorbing the pollutant into the scrubbing liquid. The scrubbing liquid used will depend on the properties of the targeted pollutant.

High efficiency removal of many gas pollutants is common in many applications. Chemical based wet scrubber selection will depend on the operating process characteristics and the particular pollutant(s) that is being removed. We work closely with our customers to determine the appropriate technology to use depending on their process and the application.

Activated Carbon Filter

Activated Carbon Filter systems

Waste gas treatment and odour control systems.

Activated Carbon Filters are designed and used for the removal of vapors and odours which still may be present within the air or gas flow.

The main odorous gases commonly found in sewage / biogas are:

• Hydrogen sulphide
• Indole and skatole
• Methyl mercaptan
• Methylamine
• Ammonia

Biotrickling filter systems

Waste gas treatment and odour control systems

Biotrickling filter combines the advantages of biofilter and bioscrubber processes for purifying waste gas. Waste gas flows through a biomedia filter bed. An automatically controlled spraying nozzles system is installed above the biomedia filter bed in order to spray water with nutrients and minerals water onto the filter bed.

The nutrient liquid ensures optimum biological process conditions for the microorganisms, which settle to the surface of the filter bed’s carrier material.

The microorganisms convert the pollutants into CO2 and water. The nutrient liquid re-enters the filter by spraying nozzles due to a circulation system.

Chlorine neutralization systems

Waste gas treatment and odour control systems
Chlorine-Emergency-Neutralization devices are scrubbers for the prevention of Chlorine emissions in case of accidents caused by the deliberation of Chlorine from storage tanks, drums, Chlorine bottles or Chlorine dosage facilities used in water treatment and chemical industry.
An alarm is set by a Chlorine alarm system which then activates the LIKUSTA-Chlorine-neutralization-unit. The exhaust air is guided through the Likusta Umwelttechnik GmbH - Germany counterflow packed scrubber by means of a chemically resistant fan. According to the size of the facility a certain amount of washfluid (10 - 20 % NaOH) is sprayed via nozzles into the counterflow by means of an immersion pump.

The heat of the chemical reaction during the washing process is absorbed by the washing liquid itself. For the generation of the required exchange surface chemically resistant packing materials are used.
The packing materials provide for the maximum exchange surface and smallest unit size with a minimum of energy needed. Before the neutralized exhaust air leaves the scrubber, mist and aerosols are retained by a demister unit with an efficiency of 98%.
The neutralization units are designed for transportation in sea containers (export) and - if required for transportation purposes - provided with a separating flange. The assembly of the unit as well as the start up can be done by the customer since all components are already hooked up and electrically connected.

Dosing systems

Supplemental Carbon addition in denitrification systems

Increasing nitrate discharge values induce operators of waste water treatment plants to use carbon dosing technology to ensure observance of limit values and efficiency of effluent treatment units.

Supplemental of diverse C source substrates expands biomass´ activity respectively excludes the lack of nutrient by operational disturbance or shutdown during weekends.

Size of operating unit and choice of substrate is determined by waste water treatment plant.

Possible substrates are acetic acid, glucose etc. without any ex-proof requirements. In case of non observing limit values, methanol and ethanol feeding is appropriate to increase denitrification rate. But if the substrate is overfed, it will not be completely consumed by the biological process which will result in elevated effluent biochemical oxygen demand concentrations.

Our dosing units allow a precise control of chemical dosage, that helps to minimize chemical costs.

LIKUSTA is an authorized manufacturer according to § 19 l of the Water Resources Law as well as the Regulation on Flammable Liquids.

Our services at a glance:

• Planning and explosion protection certificate
• Pre-assembling of components in our own production plant
• Control panel design, wiring and installation by our own electrical engineering department
• Approval by technical certified experts
• Unit maintenance

Supplemental carbon sources:

• Acetate
• Acetic acid
• Acetol
• Acetyl
• Carbodon
• Ethanol
• Ethylene glycol water mixture
• Glucose
• Glycotat
• Methanol

Chemical storage tanks

Officially certified by IFBT

As a company authorized according to:

• § 19 l of the Water Resource Law
• the Regulation on Flammable Liquids(vbf)

we are entitled to manufacture storage, treatment and dosing systems of waterendangering substances.

Our production line is subject to the external quality assurance supervision by the Technical Control Association of Hesse - Germany.

All tanks are custom-made. The storage capacity ranges from 0,1 – 50 m³.

For approved storage media, see at latest storage media list, permitted by “Institute of Bautechnik Berlin (IFBT)”.

LIKUSTA certificate number of IFBT is Z-40.21-63.

For your convenience, we also may organize the transport / shipping to your construction at site – also abroad. Alternatively we also may weld individual tanks on site.

Plastics technology

Waste gas treatment and odour control systems.

The use of plastic materials for plants and tanks, etc. is contrary to steel constructions a great long-term and cost saving alternative. Due to progress and innovative improvements of thermoplastic qualities and the optimization of technical processes, plastic materials are the choice, whenever aggressive media are involved in the process.

Our product range at a glance:

• Tank and apparatus construction
• Pipework construction
• Certified, approved tanks for water endangering substances
• Heated and insulated supply and storage tanks
• Fittings for piping systems
• Butterfly valves and duct systems
• Plastic lining
• Mounting skids for dosing pumps/devices
• Flotation tanks
• Agitated tanks
• Multi-chambered tanks for polymer facilities
• Surge-tanks for swimming pools

Tanks and apparatuses made of following materials:

• Polyethylene (PE)
• Polypropylene (PP, PPs, PPH)
• Polyvinylchloride (PVC)
• Polyvinylideneflouride (PVDF)
• Fiberglass (FRP)

Electrically Conductive Materials like:

• PPs-EL
• PE-EL

Tanks are available in round, square, vertical and horizontal designs.All custom made and certified by the external quality control of Technical Control Association of Hesse Germany (TUEV).

Our department for construction and development is always up to date and knows the latest technological developments.

Biotrickling filter systems

Waste gas treatment and odour control systems

Biotrickling filter combines the advantages of biofilter and bioscrubber processes for purifying waste gas. Waste gas flows through a biomedia filter bed. An automatically controlled spraying nozzles system is installed above the biomedia filter bed in order to spray water with nutrients and minerals water onto the filter bed.

The nutrient liquid ensures optimum biological process conditions for the microorganisms, which settle to the surface of the filter bed’s carrier material.

The microorganisms convert the pollutants into CO2 and water. The nutrient liquid re-enters the filter by spraying nozzles due to a circulation system.

Chlorine neutralization systems

Waste gas treatment and odour control systems
Chlorine-Emergency-Neutralization devices are scrubbers for the prevention of Chlorine emissions in case of accidents caused by the deliberation of Chlorine from storage tanks, drums, Chlorine bottles or Chlorine dosage facilities used in water treatment and chemical industry.
An alarm is set by a Chlorine alarm system which then activates the LIKUSTA-Chlorine-neutralization-unit. The exhaust air is guided through the Likusta Umwelttechnik GmbH - Germany counterflow packed scrubber by means of a chemically resistant fan. According to the size of the facility a certain amount of washfluid (10 - 20 % NaOH) is sprayed via nozzles into the counterflow by means of an immersion pump.

The heat of the chemical reaction during the washing process is absorbed by the washing liquid itself. For the generation of the required exchange surface chemically resistant packing materials are used.
The packing materials provide for the maximum exchange surface and smallest unit size with a minimum of energy needed. Before the neutralized exhaust air leaves the scrubber, mist and aerosols are retained by a demister unit with an efficiency of 98%.
The neutralization units are designed for transportation in sea containers (export) and - if required for transportation purposes - provided with a separating flange. The assembly of the unit as well as the start up can be done by the customer since all components are already hooked up and electrically connected.

MBR FILTER

With more than 40,000 installed membrane modules, LIKU-TECH/MARTIN Systems is your competent partner in submerged MBR filter modules for all applications.

The use of high-grade plastics (PP) and stainless steel components (SS 304, SS 316 optional) guarantees the highest quality and a long service life. The modular design provides flexibility when configuring other filter sizes.

Membrane Characteristics

MBR SYSTEMS FOR VESSELS

We offer complete on-board systems for maritime applications, including

• Vacuum systems
• Galley water treatment
• Waste handling and incineration
• Tank equipment
• Mechanical pre-treatment units
• High-efficiency biological treatment systems
• Membrane filtration systems
• Sludge handling equipment
• Food waste systems
• Exhaust air treatment
• Reverse osmosis systems
• Remote services and maintenance

Our range of German-engineered and manufactured wastewater treatment systems provides a superb effluent quality, reducing suspended solids to effectively zero and fulfilling the latest international and local requirements without chemicals consumption.

MBR PACKAGE PLANTS

LIKU-TECH/MARTIN Systems is offering you a compact package system transforming sewage to clear and high quality water. The small footprint of the treatment technology enables the systems to be integrated in natural, picturesque surroundings and to treat wastewater for irrigation use.

LIKU-TECH/MARTIN Systems has the core technology inside the MBR which consists of polypropylene plates with a polymeric membrane on each side. The membrane is welded on rigid frame. The module reduces virus and bacteria by 99.9999 %. Filter plates are continuously aerated through bubble diffusers to keep them clean. The membranes don’t need regular chemical cleaning except one or two maintenance clearings per year.

LIKU-TECH/MARTIN Systems is developing compact package systems for MBR plants so that up to 1000 m³/day can be filtered in one 40-foot ISO container. The inside tanks are made of stainless steel sheets.

AQUA CUBE

The AQUA CUBE is a cost effective, compact and mobile water treatment plant based on a modular membrane filtration system that enables available water resources to be used in particular purposes such as service water or drinkable water.

The AQUA CUBE is a plug and play device. It is easy to install and operate, has a very low energy consumption, and it is ready to use. Depending on the capacity and type of the plant, installation and operation is even possible without any need of electrical energy or other consumables. The AQUA CUBE from LIKU-TECH/MARTIN Systems is able to remove up to 99.99999% of bacteria and other pathogens out of polluted water by means of ultrafiltration filters, and make it drinkable.

CUBE MINI

Cube Mini Filters are developed as smallest filter with 0.45 m2 membrane area for household applications.

* Flow characteristics are based on our experience (GDM: gravity-driven filtration). Performance may vary depending on application and raw water quality! Operation at PHF may be reached during short intervals.

PAUL WATERBACKPACK

PAUL is a water filter that ensures a fast supply of drinking water either in disaster areas or in rural areas. The device filters pathogens out of the water, making it drinkable and offering effective protection against cholera, typhus and other infectious diseases. PAUL can be carried by only one person as a backpack to remote areas since it weighs only 20 kg. PAUL filters at least 1,200 litres of water each day and can thus supply up to 400 people.

Ducting

Liku-Tech provides the complete ductwork solutions. The ducts are fabricated to withstand the most aggressive media & environmental solutions for all water & wastewater field.

Specification

• MOC : PP, HDPE, FRP, GRP, Carbon steel & Stainless steel etc.,
• Sizes : 50mm to 3000mm
• Application : Water & Wastewater Treatment plants (STP’s & ETP’s)

Volume Control Dampers

We do the manufacture of volume control dampers for Odour Control Systems to regulate the air flow to meet the needs. The designs of the dampers are manufactured in such a way it matches the operating & environmental conditions.

Specification

• Material of Construction: PP, HDPE, FRP, GRP, Carbon Steel & Stainless Steel etc.,
• Sizes : 25mm to 3000mm
• Operations: Manual, Gear & Auto (Electrically & pneumatically)
• Application: Volume controls (Mainly for waste gas application)
• Standards : ASME / RTP-1 / BS-4994 / ASTM / ISO 7005/ AWWA D100

Radial Fans (Waste Gas ventilation)

Liku-Tech - Waste Gas ventilation fans are custom designed to meet the right demands of technical & commercial requirement. The specially designed fans are suitable for high aggressive, dusty, hot & humid application with high range of mechanical designs for each requirement.

Specification

• MOC : PP, HDPE, FRP, GRP, Carbon Steel & Stainless Steel.
• Drive : Direct Motor driven / Belt Driven
• Application : All Waste Gas ventilation.
• Standard : IS 4894-1987 / IS 3588-1987 / BS 848 / AMCA 210*/DIN 24194 / DIN 25496.

AQUA CUBE

The AQUA CUBE is a cost effective, compact and mobile water treatment plant based on a modular membrane filtration system that enables available water resources to be used in particular purposes such as service water or drinkable water.

The AQUA CUBE is a plug and play device. It is easy to install and operate, has a very low energy consumption, and it is ready to use. Depending on the capacity and type of the plant, installation and operation is even possible without any need of electrical energy or other consumables. The AQUA CUBE from LIKU-TECH/MARTIN Systems is able to remove up to 99.99999% of bacteria and other pathogens out of polluted water by means of ultrafiltration filters, and make it drinkable.

CUBE MINI

Cube Mini Filters are developed as smallest filter with 0.45 m2 membrane area for household applications.

* Flow characteristics are based on our experience (GDM: gravity-driven filtration). Performance may vary depending on application and raw water quality! Operation at PHF may be reached during short intervals.

PAUL WATERBACKPACK

PAUL is a water filter that ensures a fast supply of drinking water either in disaster areas or in rural areas. The device filters pathogens out of the water, making it drinkable and offering effective protection against cholera, typhus and other infectious diseases. PAUL can be carried by only one person as a backpack to remote areas since it weighs only 20 kg. PAUL filters at least 1,200 litres of water each day and can thus supply up to 400 people.