derypol Products for waste water treatment We make polymers, we care for the environment

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derypol Products for waste water treatment We make polymers, we care for the environment Last revision: January 2013

"We make polymers, we care for the environment" "We make polymers" means that derypol works to detect the market needs and to investigate and develop products. Our concern for the environment has become our main objective. For this reason, we only use processes and products that respect the environment. Our range of products for water treatment is the result of our commitment to innovate and to use advanced technologies for the development of specialized and progressive products. All our products are the fruit of extensive investigation and are made in accordance with the most demanding criteria and quality. * * **

Contents Index 4-5 Introduction: Basic theory 6-8 Range of coaguation products - Synthetic coagulants - Specific coagulants - Bleaching agents - Special Mixtures 9 Range of products for drinking water treatment 10-15 Range of flocculation products - Water dispersión flocculants - Organic solvent based emulsion flocculants - Solid flocculants 16-17 Auxiliary reagents 18 R+D laboratory and application laboratory 19 Applications 20 We are working on derypol

Introduction 4 Water is a precious treasure. The contamination of our water supply is becoming a more and more serious problem, because it is the final destination of domestic and industrial waste. Being an indispensable staple of an advanced society and a necessity for economic and industrial development, the availability of clean water is universally recognized as a mark of civilization. This universal concern for water quality and for a healthy environment has forged in recent years a collective effort to protect and ration this precious treasure. In this context, DERYPOL S.A. has one of the most extensive range of products in the market for water purification, including flocculant polymers and synthetic coagulants. Moreover, our team of experienced water purification specialists strive to meet the particular needs of each of our clients. This is our conviction; and our mission is to protect the Environment while providing the best service to our clients. Basic Theory Coagulation and Flocculation are two steps within the process of water purification. Both steps can be summarized as a process in which small particles combine to form bigger particles called flocks. These new particles have a specific weight that differs slightly from that of water. Because of this difference in weight, flock particles are able to either separate or float.

5 Coagulation stage Coagulation refers to the destabilization process of suspended matter. Suspended matter naturally maintains an equilibrium of positive and negatives charges. By breaking this balance these colloidal particles can come together. It is also very important to bear in mind the proportion of coagulant. If the proportions are unbalanced, a restabilization of the colloidal matter may occur due to the over saturation of the superficial charge of the particles, thereby complicating coagulation. Coagulation stage Flocculation stage Flocculation refers to the dynamic processes that take place in the aqueous medium, where particles get in contact and form flocks. The flocculant product causes the formation of chemical bondings between two or more particles. Flocks formed this way are soft and porous three-dimensional structures. The specific weight of flocks differs from that of water, allowing a separation phase to occur, either by sedimentation or floatation. Flocculation stage

Coagulants 6 Synthetic Coagulants Hyfloc Series Synthetic or organic coagulants have the ability to replace partially or completely the classic coagulants of mineral origin (inorganic). They stay effective in a wide range of different ph without modifying it, therefore reducing the required dose of alkaline reagents in the coagulation process (caustic lye, lime). Because of this, they also reduce the sludge production and improve the later sludge dewatering and the effluent purification. Likewise, its use is also standard in the secondary biological sludge coming from aerobic and anaerobic digestions, favouring the fast settling of sludge and respecting the bacterial flora. C410 C820 K10 Appearance Density Viscosity ph Yellowish translucent Liquid nearly transparent (from colourless to yellowish) Colourless to yellowish translucent ~ 1,17 g/cm 3 ~ 800 cp 3,5-5,5 ~ 1,10 g/cm 3 ~ 4500 cp 4,0-6,0 ~ 1,10 g/cm 3 ~ 600 cp 3,5-5,5 K225 Colourless translucent ~ 1,05 g/cm 3 ~ 1400 cp 4,5-6,5 K240 Colourless translucent ~ 1,10 g/cm 3 ~ 10.000 cp 3,5-5,5 K533 White to yellowish opaque ~ 1,10 g/cm 3 ~ 12.000 cp 3,0-5,0 K833 Colourless to amber translucent ~ 1,10 g/cm 3 ~ 12.000 cp 4,0-6,0

derypol 7 Specific Coagulants Himoloc and Hyfloc Series Derypol S.A. adapts to the needs of each customer. For that reason, we have a wide range of specific coagulants for concrete applications. Application Appearance Density Viscosity ph Ti933 Cutting oils White milky liquid ~ 1,20 g/cm 3 1000-6000cp 3,0-4,5 HA89 Anionic coagulant Transparent colourless liquid ~ 1,08 g/cm 3 < 10 cp 9,5-11,0 DTC681 Metals remover Yellow-greenish liquid ~ 1,18 g/cm 3 < 100 cp ~ 10 FL331 Fluorides remover Yellowish liquid ~ 1,38 g/cm 3 < 100 cp < 1 FL7 Fluorides remover Yellowish liquid MC033 Boron remover Transparent colourless liquid ~ 1,31-1,45 g/cm 3 < 200 cp < 2 ~ 1,08 g/cm 3 < 200 cp 5,0-8,0 Hyfloc Series Decolouring agents In instances which the discoloration of the effluent is necessary, Derypol S.A. has a wide range of easily modifiable and applicable decolouring agents, whose yield neither depends on the ph nor alters it. They can work alone or combined with other standard products used in water treatments. Appearance Density Viscosity ph RJ166 J25 J40 Colourless to yellowish slightly turbid liquid Colourless to yellowish transparent liquid Colourless to yellowish transparent liquid ~ 1,20 g/cm 3 750 cp 2,5-6,0 ~ 1,33 g/cm 3 <100 cp 1,0-3,0 ~ 1,28 g/cm 3 <100 cp 1,0-3,0

Coagulants 8 Hyfloc Series Special mixtures With the aim of providing the best possible service to the client, Derypol S.A. has developed a serie of special coagulant mixtures, which combine the properties of diverse coagulants. Appearance Density Viscosity ph CE289 Greenish transparent liquid ~1,38 g/cm 3 <150 cp 0,5-1,5 AC80 Yellow liquid ~1,34 g/cm 3 <1000 cp 0,5-1,5 AC50 Yellow liquid ~1,27 g/cm 3 2500 cp 1,0-3,0 AC9 Yellow liquid ~1,38 g/cm 3 <150 cp 0,5-1,5 AC9/L Yellowish transparent liquid ~1,38 g/cm 3 <150 cp 0,5-1,5 AK940 Yellowish transparent liquid ~1,34 g/cm 3 <150 cp 0,5-2,0 AK840 Yellowish transparent liquid ~1,34 g/cm 3 <300 cp 0,5-1,5 AW817 Yellowish transparent liquid ~1.36 g/cm 3 <1500 cp 0,5-2,0 AW917 Yellowish transparent liquid ~1.36 g/cm 3 <500 cp 0,5-2,0 Hygreen Series Vegetable Coagulants With the aim of providing the best possible service to the client, Derypol S.A. has developed a series of special vegetal coagulant mixtures, to cover the needs, increasingly on the rise, of the renewable, natural and non dangerous for the environment products. Appearance Density Viscosity ph GT25 Brown liquid ~ 1.06 g/cm 3 10 cp 2,0-3,0 HT20 Brown liquid ~ 1,02-1,10 g/cm 3 10 cp 2,0-3,0 KT2533 Brown viscous liquid ~ 1.05 ~ g/cm 3 <7000 cp 2,0-3,0

Products for drinking water 9 The new legal requirements for the treatment of water intended for human consumption, such as restrictions on polyacrylamides and other compounds, have spawned a new generation of products to be developed. Hypol DW Series Free of acrylamide products that fulfil the requirements of the UNE:EN 1408:2008 norm, in regards to products used in the treatment of water intended for human consumption, present a high molecular weight that allows them to successfully replace the use of classic polyacrylamides, with the advantage that, combined with aluminium salts, they leave a lower residual content of this metal in comparison to any other standard products. DW181 DW205 Appearance Density ph Viscosity Colourless to reddish transparent liquid Colourless to yellowish transparent liquid Molecular weight ~ 1,16 g/cm 3 4,0-6,0 ~ 800 cp Low ~ 1,16 g/cm 3 3,0-6,0 <2000 cp Low DW211 Colourless transparent liquid ~ 1,05 g/cm 3 4,0-7,0 <2000 cp Medium DW212 Colourless transparent liquid ~ 1,10 g/cm 3 4,0-7,0 <15000 cp Medium DW216 DW217 DW229 Colourless to amber transparent liquid Colourless to amber transparent liquid Colourless to amber transparent liquid ~ 1,05 g/cm 3 4,0-7,0 <15000 cp High ~ 1,10 g/cm 3 4,0-5,5 <15000 cp High ~ 1,10 g/cm 3 4,0-5,5 <15000 cp Very high Hynat DW Series Modified potato starches are used in the processes of water purification, which also fulfil the norm UNE:EN 1406:1998. They effectively replace traditional polyacrylamides. Ionicity Appearance Apparent Density Solution ph Viscosity at 5,0% DW872 Cationic White flaked solid ~ 0,30 g/cm 3 ~ 9 ~ 400 cp DW771 Anionic White flaked solid ~ 0,30 g/cm 3 ~ 9 ~ 400 cp

Flocculants 10 Aqueous dispersions (Derypol s exclusive technology) The flagship of Derypol S.A. products is without doubt water dispersion flocculants. The easiness of their modification and application make them unique in the market. Under some conditions they can even be administered directly without previous dilution. Their stability is good and their performance is not affected by using hard water in making solutions. Being free of surfactants and solvents, their manufacturing process has a low environmental impact in comparison with other flocculant product manufacturing systems. Himoloc DR Series Cationic flocculants, effective in a wide range of ph, can work alone or in combination with other standard products used in water treatments. Although its use is very common in all kind of water purification and sludge dewatering applications, Himoloc DR Series are especially useful in treatments of effluents where the separation must be made by flotation, cavitations or diffusion. Appearance Density Viscosity ph Cationicity Molecular weight DR2200 White milky liquid ~1,2 g/cm 3 <2000 cp 3,0-4,5 Very low High DR2500 White milky liquid ~1,2 g/cm 3 <500 cp 3,0-4,1 Low High DR3000 White milky liquid ~1,2 g/cm 3 <600 cp 3,0-4,1 Medium High DR4000 White milky liquid ~1,2 g/cm 3 <600 cp 3,0-4,1 Very high High DR522 White milky liquid ~1,2 g/cm 3 <1500 cp 3,0-4,1 Low High DR523 White milky liquid ~1,2 g/cm 3 <3000 cp 3,0-4,1 Medium High

11 Himoloc TG Series Himoloc TG Series is the natural technological evolution of the first Himoloc DR Series cationic flocculants. Because of its greater molecular weight, this product range is specially targeted for sludge dewatering in high speed centrifuges and for those sludges that initially have a relatively low proportion of water. In addition they also provide excellent results in water treatments. Appearance Density Viscosity ph Cationicity Molecular weight TG325 White milky liquid ~1,2 g/cm 3 <3000 cp 3,0-4,5 Low Very high TG30 White milky liquid ~1,2 g/cm 3 <1500 cp 3,0-4,2 Medium Very high TG60 White milky liquid ~1,2 g/cm 3 <1200 cp 3,0-4,1 High Very high TG823 White milky liquid ~1,2 g/cm 3 <5000 cp 3,0-5,0 Medium Very high Himoloc GO/GA Series Universal anionic dispersion flocculants are used for the elimination of suspended materials, as well as in the chemical industry and for textiles, paintings, tanning, food, metallurgical and hydrocarbon derivatives. GA8713 is unique for an anionic flocculant since, unlike most of anionic flocculants, it is able to flocculate in acid ph. Appearance Density Viscosity ph Anionicity Molecular weight GO2030 White milky liquid ~1,20 g/cm 3 <3000 cp 3,0-5,0 High Very high GA8713 White milky liquid ~1,20 g/cm 3 <400 cp 3,5-6,0 Medium High

Flocculants 12 Himoloc ZW Series These are amphoteric flocculants that combine cationic and anionic charge in the same polymeric structure. Their strongpoint is an amazing stability in extreme conditions; their amphoteric nature provides them a great facility in dissolution. Although these products have been recently developed, they are already successfully used in sludge dewatering in filter press and in waste water treatment in many industrial fields, especially when the oil and fat content is high. Appearance Density Viscosity ph Cationicity Molecular weight ZW111 White milky liquid ~1,20 g/cm 3 < 2000 cp 3,0-5,0 Low High ZW322 White milky liquid ~1,20 g/cm 3 < 2000 cp 3,0-5,0 Medium High Himoloc DF y GP Series (Acrylamide-free) The product called DF100 is an acrylamide-free very high cationic flocculent (100% molar cationic). It has also a very high dissolution speed. Because of its acrylamide absence, this product can be used in sludge dewatering systems where the final sludge has to be used in agriculture or in any application where the absence of this monomer is required. DF100 Appearance Density Viscosity ph Cationicity Appearance White milky liquid ~1,20 g/cm 3 < 3000 cp 4,0 6,0 100% High Appearance Density Viscosity ph Appearance GP100 White milky liquid ~1,20 g/cm 3 < 2000 cp 3,0 5,0 High Solvent based emulsions Liquid flocculants emulsified in an organic solvent allows for an increase in the concentration of the product s active properties, which is especially of interest in applications where the flocculant consumption is high. In addition its high molecular weight provides excellent results in the processes of sludge dewatering, especially in centrifuges.

13 Hyfloc FIC Series Linear cationic flocculants in emulsion with a wide range of cationic charge are useful in many applications. Appearance Density Viscosity ph Cationicity FIC100 Whitish viscous liquid ~ 1,04 g/cm 3 300-1000 cp Low Very High FIC300 Yellowish translucent liquid ~ 1,02 g/cm 3 300-1500 cp Medium Very High FIC601 Whitish opaque liquid ~ 1,04 g/cm 3 300-1500 cp High Very High FIC850 Yellowish translucent liquid ~ 1,04 g/cm 3 500-2500 cp Very High Very High Hyfloc FIC Plus Series Cationic cross-linked flocculants main application is sludge dewatering. Their cross-linking degree allow them to form very resistant flocks that are able to resist high speed centrifuges, whereas their smaller molecular weight diminishes the press filters obstruction. Appearance Density Viscosity Cationicty Molecular weight FIC9600+ Yellowish milky liquid ~ 1,05 g/cm 3 <3000 cp Medium High FIC9700+ Whitish opaque liquid ~ 1,03 g/cm 3 500-2000 cp Medium High FIC9800+ Yellowish milky liquid ~ 1,05 g/cm 3 <3000 cp Very High High FIC9900+ Whitish opaque liquid ~ 1,04 g/cm 3 500-2000 cp Very High High Hyfloc PRO Series Cationic cross-linked flocculants are used in an oil based emulsion. Their low water content allows them to reach exceptionally high active concentrations, which high lights the interest of theses products in applications with a great consumption of flocculant. Appearance Density Viscosity Cationicty Molecular weight PRO V60 Whitish opaque liquid ~ 1,10 g/cm 3 150-800 cp Medium High PRO V80 Whitish opaque liquid ~ 1,10 g/cm 3 150-800 cp Medium High

Flocculants derypol 14 Hyfloc LD Series Universal anionic emulsion flocculants are used for the elimination of suspended materials, as well as in the chemical industry and for textiles, paintings, tanning, food, metallurgical and hydrocarbon derivatives. Appearance Density Viscosity Anionicity Molecular weight LD1 White milky liquid ~ 1,03 g/cm 3 200-3000 cp High Very High LD910 White milky liquid ~ 1,03 g/cm 3 <2000 cp Medium Very High Solids Hyfloc SS Series Universal anionic flocculants are used for the elimination of suspended materials, as well as in the chemical industry and for textiles, paintings, tanning, food, metallurgical and hydrocarbon derivatives. These products are especially recommended for the treatment of waste waters where the liquid-solid separation must be made by settling. SS200/H SS120 SS140 SS140/H SS190 Appearance White granular solid White granular solid White granular solid White granular solid White granular solid Apparent Density Viscosity al 0,1% Anionicity Molecular weight ~ 0,80 g/cm 3 75-125 cp Low Very high ~ 0,80 g/cm 3 100-150 cp Medium Very high ~ 0,80 g/cm 3 125-175 cp High Very high ~ 0,80 g/cm 3 125-175 cp High Very high ~ 0,80 g/cm 3 125-175 cp Very high Very high SS124 White solid ~ 0,80 g/cm 3 100-150 cp Medium Very high SS144 White solid ~ 0,80 g/cm 3 125-175 cp High Very high

15 Hyfloc XT y KF Series These flocculant products come in granulated solid form and they are specially recommended for sludge dewatering applications. Appearance Apparent Density Viscosity al 0,3% Cationicity Molecular weight XT343 White granular solid ~ 0,80 g/cm 3 150-250 cp Very low Very high XT393 White granular solid ~ 0,80 g/cm 3 300-450 cp Low Very high XT543 White granular solid ~ 0,80 g/cm 3 200-300 cp Medium Very high XT653 White granular solid ~ 0,80 g/cm 3 250-350 cp High Very high XT903 White granular solid ~ 0,80 g/cm 3 300-400 cp Very high Very high XT139 White solid ~ 0,80 g/cm 3 300-450 cp Low Very high XT154 White solid ~ 0,80 g/cm 3 200-300 cp Medium Very high XT165 White solid ~ 0,80 g/cm 3 250-350 cp High Very high XT193 White solid ~ 0,80 g/cm 3 300-400 cp Very high Very high XT391 White granular solid ~ 0,80 g/cm 3 100-200 cp Low Low XT502 White granular solid ~ 0,80 g/cm 3 150-300 cp Medium Low XT751 White granular solid ~ 0,80 g/cm 3 100-200 cp Very high Low XT752 White granular solid ~ 0,80 g/cm 3 175-225 cp Very high Medium KF49H White granular solid ~ 0,80 g/cm 3 300-450 cp Low Very high KF69H White granular solid ~ 0,80 g/cm 3 250-350 cp High Very high

Auxiliary Reagents 16 The complex process of water purification used to involve problems which neither a flocculant nor a coagulant could solve. For all those cases, Derypol S.A. offers to our customers a complete range of auxiliary reagents. Antifoam Series Antifoam: Easy to handle defoamers series which are able to inhibit the foam formation in multiple industrial fields. Appareance Density Viscosity BS175 Opaque white liquid ~1,0 g/cm 3 800-2000 cp DB100 Whitish liquid ~0,90 g/cm 3 < 2000 cp DB96 Amber turbid liquid ~0,85 g/cm 3 < 1000 cp DB79 Yellowish transparent liquid ~0,85 g/cm 3 <50 cp BS117DW Whitish liquid ~0,95 g/cm 3 800-2000 cp Hyfloc DCA Serie Hyfloc DCA: These products are used for removing pollutants that are difficult to treat by means of conventional physical-chemical processes or other methods, or for removing the colour of effluents when the traditional decolouring agents are not able to completely remove it. Their application is recommended in order to improve the results obtained by means of traditional treatments, or to deal with occasional slight problems. Appearance Solids Density DCA104 Black powder > 97% 300 g/l DCA305DW Black powder > 95% 480 g/l DCA610 Black powder > 97% 280 g/l

17 Serie Hyfloc V Solid multifunctional products are designed to treat waste waters by means of discontinuous processes or in batches. They contain in their formulation some ph regulator reagents, which allow the product to adapt to a great variety of waste waters with different ph. Another advantage is that they do not require prior preparation and are directly applied on the effluent for treatment. Appareance Ionicity Solids V20 Grey powder Anionic > 88% V21C Brown powder Cationic > 88% V23S Grey powder Anionic > 88%

R+D Laboratory and Application Laboratory 18 One of the guaranties for the future of Derypol S.A. is the R+D Department. Today s research is the beginning of our future success. Since its creation in spring of 2001, the R+D department has worked on 64 different innovative products, practically half of them have been scaled up to plant for their manufacture, later becoming part of the product range of Derypol S.A. Nowadays, 17% of our sold products have been created in our R+D lab. The success of our research work is due to an interdisciplinary collaboration and an ongoing exchange of knowledge and experiences. The cooperation among the different areas of our company provides a wealth of knowledge that we routinely pass along to our clients. The Application Department of Derypol S.A. has the most sophisticated instruments and analytical methods which allow us to tailor our studies of water purification and sludge dewatering to each of our client s needs. And of course our services are carried out by specialists with years of experience. For this reason, the Application Department receives daily many samples, whose problems are carefully studied by our technicians and solved as much as possible, so that our commercial team can make an industrial scale test with the maximum guarantee of success.

Derypol s water treatment products applications 19 Application Water to be treated Treatment Rivers, lakes or reservoirs Raw waste waters Underground waters Drinking waters Sludge Municipal waste waters Pulp and Paper Mining Iron and Steel Non ferric metals Dry goods Chemical Industry Automobile industry Food industry Ceramics Textile Primary and secondary effluents Sludge Retention and dewatering in process Water recovering Green liquor Sludge Carbon Refined copper Refined Zinc Uranium Cold Refined Aluminium Nickel Smelting furnaces Scrubber s dust Rolling and lamination Aluminium liquor Sludge Aluminium Copper Silver Sands washing Sludge Brine Magnesium hydroxide Titanium dioxide Latex manufacturing Plastics manufacturing Paintings Water with cutting oils Juices Sugar Fats Food elaboration Sludge Process waste water Dying Wool washings Process waters Sludge Machine Drillings Petrol Drillings to find water Tunnel constructions Sludge Drillings Refinery waters Unballast waters Oil well recoveries Sludge Lubricant agent Lubricant agent

We are working on... 20 We are working hard everyday to be able to offer new discoveries so that may: - Improve our customers water quality. - Reach more profitable and sustainable treatments. - Adapt ourselves to the new government demands. - Contribute to the effort of keeping our planet blue. Our range of products, reflective of our beliefs, is continuously evolving, because we focus our efforts specially on finding new chemicals. Our success is due to our partners, colleagues and customers, and to their spirit of innovation. We understand that our strength is in our research and development of practical application, as well as our focus on meeting the needs of our clients. To discover means that we have a great ability to adapt to the needs of the market and customers, thanks to an organization that works with dynamism, creativity, effort, and overall with illusion. We make polymers, we care for the environment.

Derypol, S.A. Oficinas: C/ Plató, Nº 6 Entlo. 5º Tel. +34 93 238 90 90, Fax +34 93238 90 91 08021 Barcelona (Spain) Fábrica y Laboratorios: C/de Cal Gabatx, s/n. Tel. +34 93 849 61 88 Fax +34 93 846 41 93 08520 Les Franqueses del Vallès Barcelona - Spain www.derypol.com derypol