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TOPATEC wastewater treatment

example car repair shop

1. Portal-type car wash
2. Engine washing
3. Dewaxing

A. Sludge trap
B. Coalescence separator
C. Retention basin
D. AQUA-HZ water
recirculation system

E. Sampling shaft
F. Maintenance shaft
G. Pre-separator
H. Emulsion separation unit
or ultrafiltration unit

Current regulations prohibit the release of rainwater and wastewater contaminated with mineral light liquids without pre-treatment. For hydrocarbons the following general limits apply:

for indirekt discharge (sewer system): 20 mg/l
for direct discharge: 10 mg/l (water bodies/receiving water)

This treatment system for petrol stations and car repair shops illustrates the typical treatment processes. The following basic treatment methods are available:

Coalescence separator for treating surface water
Waste wash water recycling facility - washing facilities - sludge trap - coalescence separator - retention basin
Emulsion separation unit or ultrafiltration unit
- pre-separator / retention basin for treating oil/water emulsions produced in car repair shops (high-pressure cleaning).

Emulsion separation unit
	Chemical emulsion separation systems operate according to the flocculation and flotation principle. This process makes it possible to separate oil/grease, heavy metals and suspended solids from wastewater. The COD, phosphate content, surfactant content and AOX value are considerably reduced. Standard sizes: from 180 to 10,000 l/h. Applications: Car repair shops (dewaxing, cleaning of parts, engine washing...) Industrial plants (cooling lubricant emulsions, rinse water, degreasing baths, wastewater contaminated with heavy metals...) Train and tramp systems (washing of railcars, cleaning of parts...) Haulage companies (cleaning of tanks...) Waste disposal services (treatment of wastewater...)

Emulsion separation unit

Chemical emulsion separation systems operate according to the flocculation and flotation principle. This process makes it possible to separate oil/grease, heavy metals and suspended solids from wastewater. The COD, phosphate content, surfactant content and AOX value are considerably reduced.

Standard sizes:
from 180 to 10,000 l/h.

Applications:

Car repair shops
(dewaxing, cleaning of parts, engine washing...)
Industrial plants
(cooling lubricant emulsions, rinse water, degreasing baths, wastewater contaminated with heavy metals...)
Train and tramp systems
(washing of railcars, cleaning of parts...)
Haulage companies
(cleaning of tanks...)
Waste disposal services
(treatment of wastewater...)

Ultrafiltration units
	Ultrafiltration units work according to the physical phase separation principle. In contrast to emulsion separation systems, they do not need chemical cracking agents. With this process, it is possible to separate oil/grease, heavy metals and suspended solids from wastewater. The COD, phosphate content, surfactant content and AOX value are considerably reduced. Standard sizes: from 20 to 2,000 l/h. Applications: See emulsion separation systems

Ultrafiltration units

Ultrafiltration units work according to the physical phase separation principle. In contrast to emulsion separation systems, they do not need chemical cracking agents. With this process, it is possible to separate oil/grease, heavy metals and suspended solids from wastewater. The COD, phosphate content, surfactant content and AOX value are considerably reduced.

Standard sizes:
from 20 to 2,000 l/h.

Applications:
See emulsion separation systems

Ultrafiltration unit in container
	Ultrafiltration units work according to the physical phase separation principle. In contrast to emulsion separation systems, they do not need chemical cracking agents. With this process, it is possible to separate oil/grease, heavy metals and suspended solids from wastewater. The COD, phosphate content, surfactant content and AOX value are considerably reduced. Standard sizes: from 20 to 2,000 l/h. Applications: See emulsion separation systems

Ultrafiltration unit in container

Applications:
See emulsion separation systems

Filtration units
	Filtration units for the process water treatment of industrial and commercial applications.

Complete units in container installation

Petrol separator complying with DIN 1999, Part 1-3 and DIN EN 858-1 Class II with sludge chamber
	By enlarging the cross-sectional area of flow and the surface area, the DIN 1999 separator stills the inflowing mixture of light liquids and water. Separation is carried out using gravity alone: the lighter fractions (hydrocarbons like benzene and oils) rise to the surface and float in a layer at the top. The automatic shut-off (float) at the outlet follows the line of separation between the oil layer and the water and closes the outlet when the maximum storage amount has been reached.

Petrol separator complying with DIN 1999, Part 1-3 and DIN EN 858-1 Class II with sludge chamber

By enlarging the cross-sectional area of flow and the surface area, the DIN 1999 separator stills the inflowing mixture of light liquids and water.

Separation is carried out using gravity alone: the lighter fractions (hydrocarbons like benzene and oils) rise to the surface and float in a layer at the top. The automatic shut-off (float) at the outlet follows the line of separation between the oil layer and the water and closes the outlet when the maximum storage amount has been reached.

Coalescence separator complying with DIN 1999, Parts 4-6 and DIN EN 858-1 Class I or Classes I and II
	Whereas petrol / heating oil separators complying with DIN 1999, Parts 1-3 operate using gravity alone, coalescence separators additionally apply the physical processes of adsorption and coalescence. Special functional elements make it possible to separate dispersed microscopic droplets from the wastewater stream along with the buoyant oil droplets. Coalescence separators always have an automatic shut-off at the outlet. They are tested for certification according to DIN 1999, Part 5. These separators are only able to retain separable hydrocarbons, not emulsified or inseparable components.

Coalescence separator complying with DIN 1999, Parts 4-6 and DIN EN 858-1 Class I or Classes I and II

Whereas petrol / heating oil separators complying with DIN 1999, Parts 1-3 operate using gravity alone, coalescence separators additionally apply the physical processes of adsorption and coalescence.

Special functional elements make it possible to separate dispersed microscopic droplets from the wastewater stream along with the buoyant oil droplets. Coalescence separators always have an automatic shut-off at the outlet. They are tested for certification according to DIN 1999, Part 5. These separators are only able to retain separable hydrocarbons, not emulsified or inseparable components.

Visual-acoustical warning system
	with conformity certificate from the National Metrology Institute (PTB) according to European Standard DIN EN 50020 with intrinsically safe probe circuit for petrol / heating oil and coalescence separator.

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Emulsion separation systems Ultrafiltration units Filtration units Complete units Petrol separator Coalescence separator Warning system