LIKUSTA PROFILE.pdf · LIKUS TA environmental solutions Company Outline ... Planning, proposal...

ENVIRONMENTAL TECHNOLOGY

ODOUR CONTROL SYSTEMS

WATER TREATMENT

PLASTICS TECHNOLOGY

CHEMICAL DOSING SYSTEMS

LIKUSTAenvironmental solutions

Environmental technology with innovative solutions

waste gas treatment water treatment

english

version


Company Outline

We are a leading manufacturer of customized facilities and equipment as well as an appa-ratus engineering company for treatment of water-waste water and exhaust air purification.

Founded by Erich Meindl and Armin Schmidt in 1978, Likus-ta has built a world wide reputation based on quality, inno vation, and the in genuity of its dedi cated em ployees.

As a manufacturer author ized ac cord ing to Water Re sources Law as well as the Re gulation on Flam mable Liquids spe ciali zing in the pro-duction of fa cilities for storage, filling, dosing

and treatment of water en-dan gering substances, we are subject to external quality assurance supervision by the Technical Control Association of Hesse - Germany.

For the design of facilities, tanks and apparatuses, our graduate engineers in the fields of

ENVIRONMENTAL TECHNOLOGY, OPERATING TECH NICS, UTILITIES ENGI NEE RING, MANU FACTURING TECH NOLOGYand ELECTRICAL ENGINEERING

are at your disposal.

All under one roof

Single source supply by our specialized staff

means cost and time reduction for our

customers:

Planning, proposal request

R&D, analytic technology

Pilot plants, construction

Assembly, electrical wiring

Commissioning, Documentation

Maintenance

Production of all equipment and control panels

takes place in our plant in LICH (Germany).

Our comprehensive range of products at a

glance:

Odour control systems

Biofilter

Scrubber

Carbonfilter

UV-Technology

Biotricklingfilter / Bioscrubber

Water treatment

Degasifier

Chemical dosing systems

Chlorination

Plastic technology

Likusta plant in Lich (Germany)

(Armin Schmidt †)

(Erich Meindl †)

3


Biofilter

We have the customized systems for all different fields of application.

Deodorization (e.g.: municipal waste water treatment plants,

composting, food industry, paper industry etc.)

Exhaust air purification (e.g.: metal industry, foundry in dustry, textile

industry, che mical industry etc.)

Due to close cooperation with uni versities, and research centers, latest scientific knowledge is available during process engineering.

Applications of environ mentally friendly systems for biological gas treat ment increase steadily nowa days. The polluted gas passes through a pourus carrier. The microorga nisms settling on the organic carrier convert air pollutants into CO2 and water.

3D CAD biofilter chart

round biofilter application at a solid waste plant

LIKUSTA biofilter systems are de signed as single or multistage units according to the actual require ment for instance with a preset humidifier, bio- or chemical scrubber.

Possible constructions are available:

Areal filtersRound filtersMultistage filtersCoated sea container filtersCompact biofilter unitsCovered filters for targeted air routingMobile biofilter units*

(*also mobile hook-up container acc. to DIN 30722)

Following materials are used: Plastic materials like PE, PP, FRP, as well as coated steel, stainless steel, gratings made of recycled plastic or FRP.

The filtermaterial can be modified with a special bacteria solution to allow ac cel arated adaption and growth; though optimal unit operation is pos sible from ear ly stages. The filter material is du rable in terms of strength and op er at ing temperature range.

biofilter for odour control - compact unit

Waste gas treatment and odour control systems

4


Wet scrubber

Gas scrubbing systems absorb gaseous pol-lutants in liquids as water, sometimes with added chemicals.

LIKUSTA scrubbers can be manufactured as single- or multistage unit, round, angular, upright or horizontal for indoor or outdoor construction.

Possible constructions are available:

Counter current scrubberCross fl ow scrubberUnifl ow scrubberBiotrickling reactor

Selection of material is determined by application. Most contaminants contain corrosive gases.

3D CAD chart 3-stage cross fl ow scrubber

scrubber with activated carbon fi lter

Therefore material must be capable to endu-re permanent contact with high and low pH gases and scrubbing solutions. Material range: PE, PP, PVDF, PVC as well as FRP in a composite construction.

Our scrubbers are fi lled with high quality ab-sorbing packing material for safe unit operation.

Processes based on physical-chemical-absorption as well as biological or chemical oxidation are possible.

3-stage cross fl ow scrubber


5

counter current scrubber


SULRED biotricklingfilter

Our SULRED biotricklingfilter combines the advantages of biofilter and bioscrubber pro-cesses for purifying waste gas. The process is a combination of absorption and adsorption as well.

SULRED biotricklingfilters are used for appli-cations, whenever organic odours in combi-nation with high H2S concentrations have to be eliminated (e.g. composting, sewage treat-ment). Waste gas flows through a biomedia trickling layer. An automatic controlled spraying nozz-les system is installed above the biomedia trickling layer in order to spray water with nutrients and minerals water onto the trickling layer. The nutrient liquid ensures optimum biological process conditions for the micro-organisms, which settle to the surface of the trickling layer’s carrier material. The microor-ganisms convert the pollutants into CO2 and water. The nutrient liquid re-enters the filter by spraying nozzles due to a circulation system.

As packing for the trickling layer we use a spe-cial corrosion resistance synthetic material.

biotrickling filter - pilot plant

This is extremely durable and convinces with an over 10 year performance time. No high civil works costs occur, because of the light weighted packing material.Alternatively the use of inherent material is possible.

In comparison to bioscrubbers there is no need of using oxidizing agents at all.

For a complete odour removal we recommend a

combination of:

SULRED biotricklingfilter: pH gradient removes H2S and other

organic odours

activated carbon filter, AKF: removes residual odours

Further does a SULRED-biotrickling filter - as a

pre-treatment unit for an activated carbon filter

- increase the lifetime of the activated carbon

itself.

biotrickling filter


6


Activated Carbon Filter

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 sulphideIndole and skatoleMethyl mercaptanMethylamineAmmonia

The activated carbon filter adsorbs vapors and bind them to the surface of the activated car-bon. The zero odour level is reached by contac-ting the air through a bed of activated carbon in an adsorber. The carbon bed is sufficiently deep to assure complete odour removal at the nominal working point, but also at unexpected or seasonal peak concentrations. The contact time be tween the air and the activated car bon should be between 2-4 seconds.

carbon filter sketch

We provide catalytical carbon for special appli-cation of H2S-removal. The H2S will be catalyti-cal converted into elemental sulphur and can be washed back by water. Despite the thick bed depth, the differential pressure remains very reasonable. Indeed, the pelletised car bon type water regenera-

ble 4 mm size, is assuring 25 % less pres sure drop than a con ven tion al gas phase carbon. The reduced pres sure drop results also in 25 % energy cost savings.

The air leaves the filter free of ob jec tionable odour. Potable water only is used to wash the saturated carbon. Special catalytical carbon designed to remove at least 99 % of the odo-rous gases from air within a temperature range of 0 – 60°C and a humidity range of 40-100%.Easy replacement of used carbon: No need of chemicals, storage tanks, pumps, special safety in struc tions, trai ning for handling chemi cals, safety showers, special chemical resistant clothing, safety glasses etc.

fiberglass carbon filter


skid mounted carbon filter system - pumping station

7PE activated carbon filter

LIKUSTAenvironmental solutions 8

Chlorine neutralization

Chlorine-Emergency-Neutralization de vices are scrubbers for the pre vention of chlorine release in case of accidents caused by leakage of chlorine from storage tanks, drums, chlorine bottles or chlorine dosage facilities used in water treatment and chemical industry.

An alarm is activated by a chlorine alarm sys-tem, that activates the LIKUSTA-chlorine-puri-fication-unit. A chemical resistant fan sucks the ex haust air in the LIKUSTA counterflow filled scrubber. An appropriate amount of washfluid (10-20% NaOH) is sprayed via nozzles into the counterflow by means of an immersion pump.

chlorine gas scrubber

chlorine gas scrubber with sunshade

The heat of the chemical reaction during the washing process is absorbed by the washing liquid itself.

A chemical resistant bulk packing is installed inside the chlorine neutralization tower(s) for fast and effective chlorine absorption. The packing material provides a maximum wetted surface at minimized unit size and pressure drop.

Before the neutralized exhaust air leaves the scrubber, mist and aerosols are retained by a demister unit with an efficiency of 98 %.

The chlorine neutralization unit in cludes pumps, fan, and control panel for automatic operation.

The columns are equipped with separated flange to ensure an economical transporting. The as sembly of the unit as well as the start up can be done by customer since all compo-nents are pre-assembled and pre-wired. Of course units also may be delivered as a complete assembled unit.

chlorine gas scrubber in sea container

Waste gas treatment

LIKUSTAenvironmental solutions9

Overfertilizing of water with phosphate lets the government to put very low limits on the operators of waste-water treatment plants for feeding phosphates into the waters.

The phosphate elimination by the chemical precipitation, a physical-chemical reaction with iron or aluminium salts, allows for main-taining the offi cially allowed maximum con-centration.

LIKUSTA off ers a broad spectrum of dosing sys-tems. Its fi eld of applications ranges from small waste water treatment plants up to grouped waste water treatment plants with dissolving station for iron salts.

chemical dosing system

Complete system for phosphate / chemical

dosing precipitation consisting of:

storage tank (with offi cial certifi cate acc. to IFBT)

dosing unit including safety devicescontrol panel for easy operating and

monitoring

Following types are available:

wall / fl oor mountedinside / outside installationmobile dosage unit

Containerized dosing systems are completely assembled and wired.

dosing pumps wall mounted

Chemical dosing systems

dosing station in weather proof cabinet – inside

IPC-container dosing system

storage tank with handrail on top


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 exclu-des the lack of nutrient by operational distur-bance 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 de-nitrification 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.

carbon source dosing system

dosing unit - ex proof

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

LIKUSTA is an authorized manufacturer accor-ding to 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 expertsUnit maintenance

Supplemental carbon sources:

AcetateAcetic acidAcetolAcetylCarbodonEthanolEthylene glycol water mixtureGlucoseGlycotatMethanol

filling arrangement

Supplemental Carbon addition in denitrification systems

10

LIKUSTAenvironmental solutions11

Ground water treatment

The LIKUSTA chlorinated hydro carbon strip-ping facilities operate following the counter-flow principle and are available in a single or multi step design.

The ground water polluted with hydro car-bons is atomized via high efficiency packing materials, which increases the required wetted surface.

Simultaneously fresh air is blown through the packing material into counterflow and thus it takes the pollutants from the water. This pro-cess performs an efficiency of more than 99%.The polluted exhaust air is purified by adsorp-tion with activated carbon.

Soil vapour extraction

By extracting the air out of the well, a vacuum builds up in the surrounding soil which causes evaporation of the chlorinated hydro carbons.The contaminated air is led through activated carbon filters.

stripper

This technology is used to remove volatile hy-drocarbons from a contaminated soil area. In a first step a bore hole generates a well for the contaminated air.

Desorption facilities / CO2 degasser / degasifier

LIKUSTA desorption facilities are used as me-chanical- physical de acidi fication facilities in waterworks for the reduction of CO2, for ad-justing the pH value or for the removal of toxic and / or odorous smells.

We offer the following types of facilities

(materials: PE / PP/FRP):

LIKUSTA type KVR cylindrical, round, upright, as counterflow column with bulk packing materials

LIKUSTA type KRR cylindrical, rectan gular, up right, as counterflow column with packing material

LIKUSTA type FKB rectangular as flat top de gasser (very useful in case of limited space; height of device 1,5-2 m)

Water treatment

flat bottom degasser / type FKB CO2 degasser


As a company authorized according to:

the Water Resource Law the Regulation on Flammable

Liquids(vbf )

we are entitled to manufacture storage, treatment and dosing systems of water-endangering substances.

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

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

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

TÜV Germany Certificate

officially certified tank with filling arrangement

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.

tank transport on low bed truck

Storage tanks – officially certified by IFBT

12

officially certified tank with ladder


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 im prove ments of thermo plastic qualities and the optimizati-on of technical pro cesses, plastic materials are the choice, whenever aggressive media are involved in the process.

Our product range at a glance:

Tank and apparatus con structionPipework constructionCertified, approved tanks for water

en dangering substancesHeated and insulated supply and

storage tanksFittings for piping systemsButterfly valves and duct sys temsPlastic liningMounting skids for dosing pumps/

devicesFlotation tanksAgitated tanksMulti-chambered tanks for poly mer

facilitiesSurge-tanks for swimming pools

plastic tank production

Tanks and apparatuses made of following

materials:

Polyethylene (PE)Polypropylen (PP, PPs, PPH)Polyvinylchloride (PVC)Polyvinylideneflouride (PVDF)

and also with electrically conductive materials like

PPs-ELPE-EL

Tanks are available in round, square, vertical and horizontal designs.

All custom made and cer ti fied by the ex ternal qua lity con trol of Tech nical Con trol As sociation of Hesse Germany (TUEV).

Manufacturer acc. to Water Resource Law and quality controlled by

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

tank production

Plastics Technology

13


We are specialists in building control panels for the entire spectrum of all our manufactu-red facilities and apparatuses:

Design according to the latest VDE- and IEC guidelines

ManufactureDocumentationInstallationInitial commissioningMaintenance / Remote Maintenance

All control panels can be equipped with fol-lowing features:

Main switch with emergency stop Supply of control voltage via

transformer or supply of direct current Power and control device for all drives

and aggregatesAcoustic and optic alarmHuman Monitoring Interface (HMI)Potential free contacts

control panel - equipped with PLC S7-1200

Control packages often include a PLC, and HMI. Systems integrate with facility-widecontrol confi gurations.

Our manufactured facilities are available with control panels which have to be mounted on site or they also can be equipped completely pre-wired.

Following types of installation are possible:

indooroutdoorex-proof

control panel outdoor installation

Control panels

14

control panel for scrubber control & monitoring

LIKUSTA PROFILE.pdf · LIKUS TA environmental solutions Company Outline ... Planning, proposal...

Documents

Transcript of LIKUSTA PROFILE.pdf · LIKUS TA environmental solutions Company Outline ... Planning, proposal...