In den Leppsteinswiesen 9
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ECONOMICALLY AND ECOLOGICALLY
WATER AND WASTEWATER TECHNOLOGY FOR INDUSTRIAL WASTEWATER FROM CHEMICAL, PHARMACEUTICAL AND COSMETIC APPLICATIONS
Effluents from the chemical and pharmaceutical industry often exceed particular thresholds due to high concentrations of surfactants, dyes etc. Controlled blending of the different effluents facilitates the required equalisation to allow the employment of treatment regimes like precipitation (physico-chemical treatment), adsorption or biological treatment (aerobic).
Depending on the clients’ specific applications, tailored combinations of process regimes will ensure optimal treatment results. If required particular effluents are treated prior blending to achieve the optimum effluent compositions to allow the recovery of valuable resources. Our broad expertise will guarantee a high IRR taking into account the specific requirements of any particular customer.
In order of world famous colour manufacturers CBW Chemie GmbH Bitterfeld-Wolfen produces stable and high-quality dye solution concentrates upon given as well as own formulas. The core production process – membrane filtration of liquid dyes – takes place in the Envopur® NFI diafiltration plant. The multi-staged production process requires:
loading and dissolving of dry staff powder
transfer of the solution into the treatment tank
desalination of the liquid dyes
concentration of the liquid dyes
transfer of the concentrate to the product discharge station
cleaning of the system equipment under high pressure by means of Envopur® CIP cleaning unit
The components of the completely in stainless steel erected production plant are delivered in compact system units of high prefabrication degree. Through that, a clear and simple assembly on site was enabled. The plant was finished and put into operation in 2/3 of the originally planed delivery time of 12 months.
10 - 15 m3/batch
loss of product:
salt concentration in the product:
The purity of each batch liquid dye concentrate is given even if the colour has changed from black to yellow.
Die Envopur® NFI membrane plant is the core of the liquid dye production, it is used to desalt and concentrat the Raw solution
DEUTSCHE AMPHIBOLIN-WERKE VON ROBERT MURJAHN GMBH & CO. KG OBER-RAMSTADT · GERMANY
TREATMENT PLANT FOR EFFLUENCE FROM PAINT PRODUCTION
The production of paints causes waste water which arises while cleaning the production vessels and floors. The waste water’s essential constituents are dispersion paints, varnish, plast as well as cognate products.
After having passed a prelimery sieve the waste water is stored within stirred buffer vessels which charge the continuously working treatment plant type Split-O-Mat® COL in a level controlled manner. The following chemicals are dosed proportionally and pH-controlled within the three treatment steps coagulation, neutralization and flocculation: ferric chloride, lime-milk and flocculents.
The treatment step “flocculation” is controlled by a video camera in order to enable checking the result in the central control room via screen.The mix of slimes and water is then separated within the sedimentation. The precipitated thin slurry is dehydrated by a chamber filter press after having been intermediately stored. The remaining clarified water is discharged to the final control via a multi-layered filter where possibly still existing microflakes are eliminated.
waste water’s quantity:
variable 15 – 20 m³/h
waste water’s quality:
solid matters variable:
approx. 1200 mg/l
SPS incl. visualizing system
Treatment plant for effluence from paint production
EUROFARMA · SAO PAULO · BRAZIL
EVERYTHING FROM A SINGLE SOURCE
PLANT ENGINEERING AND SYSTEM MANAGEMENT FOR GENERICS MANUFACTURING
Eurofarma is one of the leading generics manufacturers in Brazil. Increasing demand led the company to construct a new factory in São Paulo. In 2005, EnviroChemie was contracted to build a state-of-the-art wastewater treatment plant. The plant was required to treat the water in a way that it could be reused, for irrigation as an example.
A combination of Envochem® technology for chemico-physical wastewater pretreatment and Biomar® OKB technology for biological wastewater treatment was chosen.
Eurofarma also engaged EnviroChemie for system management. Thus, the EnviroChemie experts guarantee safe operation of the plant while maintaining its performance at a continuously high level.
Combination of Envochem® chemico-physical pretreatment and Biomar® biological wastewater treatment Throughput: 20 m³/h
Wastewater treatment and system management at Eurofarma, Brazil
HENKEL · HUNGARY
BIOMASS SEPARATION AND PRODUCTION WATER RECOVERY
In Henkel, Hungary, the biological wastewater treatment stage for the separation of the biomass the ultra filtration Envopur® UFI is operated as a membrane bioreactor (MBR) in the Cross-Flow procedure.
For the process water recovery, the UF permeate is mixed with the reverse osmosis concentrate of the fresh water plant. The combined wastewater is processed to a high quality process water by means of the permeate step reverse osmosis Envopur® NUO. The special low-fouling high capacity membranes hold back the low-molecular substances and dissolved salts in the preparation process with a very high efficiency. The permeate can be used without further processing in the production.
Spiral wound module
BEIERSDORF · BRASILIEN
WASTE WATER TREATMENT FOR BEIERSDORF IN BRASILIEN
The Nivea brand from Beiersdorf is very popular in Brazil and the country is one of the largest cosmetic markets in the world. This is why in 2002 Beiersdorf built a new production site in Itatiba, about 1 ½ hours by car from São Paulo.
EnviroChemie was commissioned to construct the new waste water treatment plant for the site. The concept is based on modules, meaning the plant can be adjusted to higher quantities of waste water as the production site expands..
Fats and oils for the production process are separated from the waste water in a grease separater. Following an intermediate buffer, the waste water is treated biologically in a Biomar® plant with its own sedimentation tank. The quality of the resulting water is higher than official requirements.
biological waste water treatment
120 m³/d industrial waste water
80 m³/d sanitation waste water
Type of water:
cosmetic industry waste water
Biomar® biologic waste water treatment
chamber filtre press for sludge drainage
KAROON JOINT VENTURE COMPANY · PERSIAN GULF IRAN
PRE- TREATMENT OF WASTE WATER FROM PRODUCTION OF EXPANDED PLASTICS
Description of the plant:
In an industry area located near to the Persian Gulf next to the Iraqi border plastics are produced (TDI-Plant). Due to these production steps bio-toxic and not bio-degradable waste water arises. Before dumping the waste water into the biological treatment plant, a pre-treatment is necessary. The aim of the pre-treatment is to crack these bio-toxic and not bio-degradable substances and dissipate them to not bio-toxic or bio-degradable compounds. The pre-treatment is the scope of delivery of the company EnviroChemie.
The waste water treatment plant Envochem® COL is designed for an automatic and continuous operation. During the design of the plant the special climatic conditions and the high safety standard of a chemical industry are considered. The water is treated by the following treatment steps:
waste water buffering and cooling
two-step oxidation process with Fentons Reagent
sludge dewatering to reduce the sludge volume
elimination of the exhaust air of the various tanks
Ø 12 m3/h
max. 16 m3/h
the organic components:
reaction time in the
> 120 min
space requirement, total:
17 x 28 m
material of the reactors:
ENIA CARPETS BV · GOIRLE · NETHERLANDS
Envochem® wastewater treatment plant for wastewater from dyes and latex used in carpet production
Enia Carpets BV, a company based in Goirle in the Netherlands, manufactures and dyes carpets. The process used to make the latex backings for the carpets results in wastewater, e.g. when cleaning the tanks and during mixing and adhesion.
During the carpet dying process, wastewater is generated as a result of rinsing and when the tanks are cleaned. The wastewater from these two processes is stored separately in large tanks so that it can undergo homogenisation. After the quality of both types of wastewater has been homogenised, it is pumped to the treatment reactor under the control of a PLC. Iron chloride, lime milk and flocculating agents are automatically dosed with the stirrers running. The contaminants clump together to form filterable flocs that settle once the stirrer has been turned off. Then the clear supernate undergoes final pH testing before being pumped into the sewer. A chamber filter press compresses the sediment thin sludge into semisolid filter cake.
2 - 4%
Temperature of latex waste water:
Temperature of dye waste water:
50 m2 over 2 stories
Siemens S7 PLC
Filter press volme:
Filter press system:
automatic plate transport
chamber filtre press
Procter & Gamble, Urlati, Romania
Creating flexibility by using modular wastewater technology inside a container
Procter & Gamble is currently in the process of building a new shampoo factory in Urlati, Romania, at an approximate cost of 50 million euros. The new wastewater treatment plant is to clean the wastewater that is contaminated with organic substances and zinc so that it can be discharged into the municipal wastewater system.
The multi-stage process was developed on the basis of laboratory tests and consists of Envochem® physico-chemical treatment as well as Biomar® biological treatment. The wastewater treatment plant has been created using an expandable modular concept. All the process technology was prefabricated in the form of modules and the necessary concrete tanks were the only things that had to be constructed at the customer’s site. The decisive factors for the customer included, in particular, the extent of prefabrication and high standard of quality as well as the minimal amount of construction and assembly work required locally at the site.
150 m³/day, with scope for expansion to 300 m³/day
Organic substances, zinc
PLC with visualisation system
Hoffmann-La Roche, Toluca, Mexico
Envochem® ozone oxidation for eliminating active pharmaceutical ingredients from wastewater
Hoffmann-La Roche has set up a new facility in Toluca, Mexico for the production of two highly effective cancer treatment drugs. The wastewater generated in this context poses an ecotoxicological risk. Therefore, it needs to be eliminated at the source.
Various methods were tested and evaluated from an ecological and financial perspective.
According to preliminary studies, the best way to eliminate the active pharmaceutical ingredients is to use ozone. This involves adding ozone to the wastewater so that the active ingredients (Capecitabin and mycophenolate mofetil) oxidise. The process was developed by EnviroChemie on the laboratory scale using original substances and subsequently implemented on a large scale.
Requirements of the wastewater treatment plant to be created:
- Reliable results - Very high level of operational safety - High degree of automation - Compact construction for the processing plant - Little handling of chemicals - As little waste as possible
The complete plant was delivered to Mexico preassembled inside a 6 m long container and ready for immediate use. Up to 10 m3 of wastewater is generated every day and the wastewater treatment plant is in operation around the clock. Completion date: 2008