COOLING TOWER MAINTENANCE CHEMICALS

Cooling towers are used for heat rejection in industries, where water is cooled down, and air draft is achieved with the help of draft towers and fans.

Feed water to be cooled down in the process, may have temperature between 40 to 60oC and with the contact of above air flow, its temperature is decreased between 10 to 20oC. This entire process is based on natural evaporation of water as after being cooled, water is again recirculated into the production process.

Cooling towers are structured as open and closed systems. In a closed cooling tower system, the water does not come in contact with outside air. So, it prevents any deterioration from outside air pollutants and microorganisms to the cooling tower system, but alongside, it also hinders the execution of some microorganisms inside the system, due to no contact with outside air. it is vice versa for open cooling tower system.

The efficiency of cooling towers is affected due to some disruptions such as scale and slime formation, corrosion, biological-fouling etc, as water is cooled primarily by evaporation of a portion of the circulating water and airborne impurities such as dust and gases, may enter during the process. This affects system efficiency badly as well as shortens cooling towers’ life expectancy. In order to enhance the efficiency of the system, and prevent forementioned disruptions to the process, several chemical additives are used.

Acuro Organics Limited offers ACUCOOL range of cooling tower chemicals, focusing on multiple application processes as follows.

  • Antiscalants
  • Descaling agents
  • Corrosion inhibitors
  • Biocides
  • Biodispersants

ACUCOOL range of chemicals are capable of enhancing process performance, providing better safety standards and sustainability. Our range is full of eco-friendly chemicals with decreased rate of toxicity and hazardousness, focusing on all organizational aims such as less water, energy and chemical consumption, with less labor and maintenance costs.

cooling-tower-chemicals
Cooling tower chemicals
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Polyelectrolytes – High Molecular Weight Flocculant Polymers

Polyelectrolytes are chemicals that have qualities and characteristics of both polymers and electrolytes. For instance, polyelectrolytes have the properties of higher viscosity, that is adopted from polymers and higher conductivity is adopted from electrolytes(salts).

Applications

Polyelectrolytes have multiple applications:

  • Polyelectrolytes are mainly used in water treatment processes, we can use them in water-treatment for sediment settling, and solid-liquid separation.
  • In chemical reactions, polyelectrolytes are used as thickeners, emulsifiers and conditioners for influencing any reactants in any particular reaction.
  • In daily life, we can find them in cosmetics, shampoos and soaps.

Types of polyelectrolytes on the basis of applications:

We can categorize polyelectrolytes in three categories:

  • Cationic Polyelectrolytes working as coagulants are used to neutralize the negative charge present on wastewater particles. In this process cationic polyelectrolytes are considered as primary coagulants, as they have a large scope to work, especially dewatering processes and for bio sludge sedimentation.
  • Anionic Polyelectrolytes, bearing negative charge, are adequately efficient for process applications like paper, sugar, textile, mining & food industries.
  • Non-ionic polyelectrolytes don’t consist of any specific charge unlike above mentioned. They are chargeless, but capable enough to work with a compatible composition of water.

Working of Polyelectrolytes

Polyelectrolytes with high molecular weights form bridges with wastewater materials. This phenomena is called coagulation bridging phenomenon. Polyelectrolytes also work as flocculants, they create bridges along the suspended particles or sediments and anionic or non-ioinic polymers, and widen or maximize their size so they settle down in the solution all together.

Our Products

Acuro Organics Limited is a prominent organization serving in the industry for many years. We have earned excellence in manufacturing various water treatment chemicals including Polyelectrolytes.

Mentioned below is the portfolio of Polyelectrolytes manufactured by Acuro Organics Limited

ANIONIC POLYELECTROLYTES (POLYACRYLAMIDE-PAM)

  • ACUROFLOC AT124  is a powder form polyacrylamide based anionic polyelectrolyte. It consists of high negative charge. It is proficient in applications like solid-liquid separation in treatment of effluent water and mining.
  • ACUROFLOC AT137 is also a powder form polyacrylamide based anionic polyelectrolyte. It consists of low negative charge. It is proficient in applications like sediment settling.
  • ACUROFLOC AT470 is a powder form polyacrylamide based anionic polyelectrolyte, efficient in working of process applications like paper, sugar, mining, textile and food industries.
  • ACUROFLOC L207 is a liquid form polyacrylamide based anionic polyelectrolyte. This polyelectrolyte manufactured by us is also efficient at very low dosages.

CATIONIC POLYELECTROLYTES

  • ACUROFLOC CN530 is a powder form cationic polyelectrolyte. It is efficient to work at very low dosages, and capable of settling quickly in primary and secondary ETP.
  • ACUROFLOC CN615 is also a cationic polyelectrolyte, efficient to work at very low dosages and is capable of settling quickly. It has proficiency in process applications like dewatering and big sludge sedimentation.
  • ACUROFLOC CN630 is also an instance of cationic polyelectrolytes. It performs a major role with centrifuges and in process applications of sedimentation of biological sludge (eg. bacteria and protozoa), sludge, dewatering and paper.
  • ACUROFLOC C405 is a liquid form food grade cationic polyelectrolyte for potable water.
  • ACUROFLOC LP44 is a polydadmac based primary inorganic coagulant, working as charge neutraliser (liquid).
  • ACUROFLOC DW17 is a Deoiling Polyelectrolyte (DOPE), majorly being used in oil recovery in oil exploration industry.
  • ACUROFLOC PD70 is also a Deoiling Polyelectrolyte (DOPE) for oil removal from water in refinery water and oil.
  • ACUROFLOC DWC35 is a powder form dewatering inorganic coagulant, which is used for secondary sludge thickening.
  • ACUROFLOC DWC91 is a also powder form dewatering inorganic coagulant, which is also used for superior sludge thickening.

Other products

INORGANIC COAGULANTS

  • POLY ALUMINIUM CHLORIDE POWDER is popular in working for process applications of flocculation in water purification, treatment of potable water and wastewater treatment. It is efficient at very low dosages along with presence of high turbidity water and high pH range.
  • FERRIC CHLORIDE POWDER / 40% SOLUTION is available in both liquid and powder form. It is efficient in removing contaminants from wastewater extensively. Moreover, it works in process application of drinking water production.

polyelectrolyes

CARBOHYDRAZIDE – Oxygen Scavenger for High Pressure Boilers

Acuro Organics Limited’s High-Performance Oxygen scavenger for Boilers is used to scavenge oxygen from make-up water in feed water systems.

It is a white water-soluble powder that reacts directly with oxygen in all types of Boilers. It is also made available in 12% Solution form.

Acuro’s carbohydrazide based oxygen scavenger can be added to the preboiler section, or the feed water or sometimes even to the downstream of the deaerator. Our product offers your boiler system exceptional protection from oxygen corrosion by giving feed water and boiler system passivation.

Due to its volatile nature Carbohydrazide scavenges Dissolved Oxygen completely and effectively. It is well-known that Carbohydrazide reacts with oxygen at low temperatures and pressures.

Benefits and Features:

  • The products of the reaction are volatile and do not contribute dissolved solids to the boiler water.
  • Carbohydrazide is non-carcinogenic in nature and is relatively stable at room temperatures.
  • At very high temperatures, carbohydrazide reacts with water to produce hydrazine and carbon dioxide then it undergoes degradation.
  • Carbohydrazide reacts with iron and copper oxides to form protective passive oxides.
  • The by-products of carbohydrazide contain no harmful organic compounds or acids; namely Hydrazine, Nitrogen, Water, Ammonia and Carbon Dioxide.

Carbohydrazide

ACTIVATED CARBON

In order to overcome the dilemmas of water purification, microbial inactivation, separation and purification of chemical-allied industries, Activated Carbon (AC) is the significant solution. AC has accelerated the remarkable development and expansion of Carbon Science and Nanotechnology in recent years.

It is a highly porous, carbonaceous material produced by carbonizing the organic substances like hardwood, coconut shell, fruit stone, saw dust, coal, cellulose residue, walnut, peach pits, babassu nutshell, palm kernel, petroleum coke or anything and everything having high fixed carbon content & potency of activation.

Historically, 1st world war triggered the tremendous use and production of granular activated carbon for adsorbing poisonous gases. The study of activated carbon requires a massive knowledge of pore volume and surface area.

The porosity enhancement requires efficient activation. The activation involves high temperature with/without using inorganic salts with CO2 & steam. The use of chemical activation agent (ZnCl2 or H3PO4) is optional. The resulting AC has a colossal capacity of adsorption from gases and liquids.

To meet the need for diverse industrial, environmental & miscellaneous sources, various AC is commercialized depending on size, shape & application

Granular Activated Carbon (GAC): The mean particle size is approx 1-5mm and is mainly used for water treatment. A high-quality GAC provides durability, high density & effective carbonaceous material. It is effective against organic contaminant in waste water. It can be used for both gases(4×6, 4×8, 4×10 mesh sieve) & liquid (8×20, 20×40,8×30 mesh sieve). It has marked its bulk application in water treatment, deodorization, decolorization, reduce DBP, allied chlorinated solvents, carcinogenic metals (Pb, Hg) & pesticides.

Powdered Activated Carbon: The average particle size is approx 0.1mm and diameter range from 0.15-0.25mm. Being thoroughly crushed, about 95% of the powdered particle will pass through designated mesh sieve. The enormous adsorption is due to a large surface area to volume ratio and small diffusion distance. The applications include raw water in-take, clarifiers, gravity filters, sugar decolorization, Hg & Dioxin removal from flue gas etc.

Pelletised Activated Carbon: The granular form of AC is given a specific shape (cylindrical) by pelletization. It is well known for its high internal porosity, homogeneous activation & diffusion throughout the particle. It has high density, mechanical strength, hardness & low abrasion index. It is profoundly used in air & gas purification.

Silver Impregnated Activated Carbon: In this, the activated carbon (granular/pelletized) is covered with inorganic metals (silver). Being an excellent disinfectant, silver coupled with AC is used as an adsorbent to tackle various water borne diseases, thus can be used for treating domestic water. The eminent bacteriostatic properties with antimicrobial effects hinder the biofilm growth over filter media, thus prolonging the product’s life.

Coconut shell based granular activated carbon

Isothiazoline based Biocide

Isothiazoline based biocide

ACURO’s Isothiazoline based biocide is a broad spectrum formaldehyde-free biocide based on a mixture of active ingredients: Chloromethylisothiazolinone CMI (5-chloro-2-methyl-2H-isothiazol-3-one) and Methylisothiazolinone – MIT(2-methyl-2H-isothiazol-3-one) in a 3 to 1 ratio. This formulation is marketed by Acuro Organics Ltd.

MIT finds application in domestic, industrial & institutional cleaners, whereas the same product in combination with CMI is an established preservative in personal care and cosmetic products.

The combination of CMI and MIT is one of the most potent and cost-effective biocides for industrial preservation in the wet state.

Mechanism of working of Isothiazolines based biocide:
Isothiazolones utilizes a two-step mechanism involving rapid inhibition (minutes) of growth, respiration and metabolism, followed by irreversible cell damage resulting in cell death due to destruction of protein and presence of free radicals(hours).

ACURO’s Isothiazoline based biocide is an effective antimicrobial used to control bacteria, fungi, and algae in :

  • cooling water systems and industrial water-treatment
  • fuel storage tanks
  • pulp and paper mill water systems
  • oil extraction systems
  • wood preservation and antifouling agents
  • water-based adhesives
  • paint formulations, coatings and inks
  • household cleaning products
  • construction materials
  • polymer emulsions
  • personal-care products
  • diagnostic reagents
  • paper-coating materials
  • metalworking fluids
  • oil and gas fluids

Key benefits of ACURO’s Isothiazoline based biocide:

  • Works well at Low dose
  • Broader spectrum of activity
  • Supplied as an aqueous solution readily incorporated into cosmetic formulations
  • Good compatibility with surfactants and emulsifiers, irrespective of their ionic nature
  • Effective over the entire pH range normally encountered in cosmetics
  • No color or odor imparted to cosmetic products
  • Low toxicity at recommended use levels
  • Environmentally acceptable
  • Rapidly biodegradable

 

RO Antiscalants

ACURO’s range of antiscalants are the most economical products for extending the life and efficiency of your RO system. ACURO’s new generation antiscalants use active ingredients that are proprietary mixtures of various molecular weight polycarboxylates and polyacrylates. We supply specialist, high quality RO antiscalant products to industry and water treament plants pan-India, most countries in the Asian sub-continent, and also the middle-east, Africa etc.

We are best known for the following variants:

  1. RADIX 31 – Low-pH Antiscalant NSF
  2. RADIX 95 – High- Silica Inhibition RO Antiscalant NSF
  3. CHEMIRO 909N – Economical RO antiscalant NSF
  4. RADIX 39 – High-pH Antiscalant
  5. RADOX AS216 – High-performance antiscalant powder with silica inhibition

ACURO’s antiscalants consist of surface active materials that interfere with precipitation reactions in three primary ways:

  • Threshold inhibition: Our range of antiscalants deposit control agents that inhibit precipitation well before threshold limit.
  • Crystal modification: ACURO’s antiscalants impede the growth of the crystal structures and also render them distorted and less compact.
  • Dispersion: Our antiscalants impart highly anionic charge to colloidal particles, which keeps the crystals separated. The high anionic charge also separates particles from fixed anionic charges present on the membrane surface.

There are many predictors of scale formation,that can be used for calculating likelihood of scales. Use of these predictors depends upon an up-to-date water analysis and a knowledge of system design parameters. Antiscalant type and dosage is based upon the mineral analysis at the inlet point.

RO ANTISCALANTS
RO ANTISCALANTS

SAATHEE :- SUPER POTASSIUM HUMATE

SAATHEE is extracted from natural high grade leonardite, with excellent solubility. It is used alone or combined with Nitrogen and Phosphorus in irrigation as spray drip or soil treament. It is applied in agriculture and horticulture plants as well as all landscapes and gardens. This is a concentrated form of humic acid (1kg Saathe is equal to 2.5 kg Humic acid ).

It encourages plant enzymes and propagation of desirable micro organisms, yeast and algae. Sathee also promotes the ingestion of nutrients, responsible for increasing vitamin contents in plants.

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SAATHEE :-
SUPER POTASSIUM HUMATE

 

ACUROSIL NANO+

ASN_1Agriculture, for decades, have been a primary source for food.

But, what if farmers face some hurdles while cultivating crops on fields resulting into loss of crops which may ultimately lead to shortage of food?

Yes, there exist such hurdles in the form of pests, weeds and fungi which damage crops as well as shatters the hard work of farmers. This has emerged as a great matter of concern because of elevated need of food due to growing population. So, does this dilemma remain unsolved?

No. because Science has the solution!

Scientists have synthesized numerous chemicals which save crops from these complications. Altogether, they are known as Pesticides.

But, Is the use of pesticides safe for crops? Or They cause certain discrepancies?

Some pesticides are detrimental for crops as they contain chemicals which may prohibit the growth of crop, or may contaminate the harvest.

So, which pesticides to adopt?

41f815e5-40d0-4078-869a-4b3b15894c00Acuro Organics Ltd. brings to you an environment as well as crop friendly germicide Acurosil Nano+. Let us demonstrate to you a detailed description of our product Acurosil Nano+.

FORMULATION

Acurosil Nano+, is formulated by combination of Hydrogen Peroxide and Silver to a complex nano form. It is prepared by a special process in which both Hydrogen Peroxide and nano Silver are mixed, bonded and complexed to give an oligo-dynamic, stable and long lasting effect.
The lone properties exhibited by its components are:
⦁ Strong germicidal effect of Hydrogen peroxide
⦁ Anti-senescence properties of silver

FEATURES

With proven efficacy in horticulture industry, it offers following features:a71fe5ff-d702-4196-b541-0ffccd61b7bb.jpg

⦁ Highly effective against wide spectrum of micro-organisms
⦁ No chemical by-products
⦁ Environmentally benign (benevolent)
⦁ Ensure farm fresh appearance
⦁ Maintains original aroma
⦁ Quality preserved even after prolonged storage during marketing

APPLICATIONS AND DOSAGE

 

Pre Plantation: Soil Fumigation or Sterilization

f6e25fe4-e23c-4df4-8fd6-eca984a55201Acurosil Nano+ is recommended as a soil sterilant by Pioneers of greenhouse cultivation. It leads to visual plant health improvement in crops grown in sterilized beds by providing a good control over soil fungus and weak weeds. Methods to apply are:

1.Wet the beds with neutral pH water up-to 75% water holding capacity of soil.
2.In irrigation water mix 35ml Acurosil Nano+ in 1ltr of water.
3. Do not mix any chemical with this, as this solution is highly reactive.
4. Apply this solution @ 1 liter/m2.
5. Leave the field undisturbed for 12 hours.

Comparison with FormalinTable Design_tEXT-1

Fungal control in Drip Irrigation systems

88f01be8-7b19-450d-b0ac-0016e0c2db08Favorable environmental conditions in drip irrigation systems (local irrigation method) can cause rapid growth of several species of algae and bacteria resulting in slime and filament buildup, which often become large enough to cause biological clogging, which is quite difficult to control.
Small dosing of Acurosil Nano+ eliminates bio-film and controls bacterial growth in drip-irrigation pipeline.

Recommended Dosage: 1-2 ml per litre of water

Foliar Spraying3bf26a86-26e2-42fb-80df-c3efa7417f1c

Applying Acurosil Nano+ to the foliage is widely practiced in flower production. It helps as profile active control measure in disease-pest and pathogen infection.

Dosage: 2-3 ml per litre of water

Post-Harvest: Extending Product Shelf Life

8075915a-2378-407a-8230-cc2daea8c948An alarming percentage of fresh produce perishes long before it reaches the consumer. These losses area accounted either due to natural degradation by bacteria and mould, or when no good transportation linkages or storage is unavailable. These losses could be minimized by suitable post-harvest measures to increase the shelf life of traditional as well as cut flowers by inhibiting bacterial and mould growth. Straight forward washing of harvested or cut flowers after harvest may simply redistribute organisms from infected to healthy produce.
With strict environmental regulation and controls imposed by most importing countries on pesticide residue levels in force, it is imperative to adapt to eco-friendly treatments. Acurosil Nano+ is such a non-toxic alternative to fungicides/chemical which is being used as post harvesting treatment for domestic marketing and export trade, being eco-friendly.
At this point, you know all the advantages, features and usage of ACUROSIL NANO+. Have an encounter and avail the worth!

Visit our websites www.chemicals99.com and www.acuro.in and find variety of useful agricultural products and much more!

AFM Media

 

What is AFM®?

  • AFM® stands for Activated Filter Material, a revolutionary filter media made from green glass developed and manufactured by Dryden Aqua.
  • AFM® exceeds the performance of quartz and glass sand by filtering about 30 % more organics.
  • AFM® is bio-resistant and self-sterilising which means no biofilm is formed in the filter bed. This important feature makes the pool system healthier, ecological and more economical.
  • AFM® has successfully been used in over 100‘000 public and private swimming pools worldwide.
  • AFM® is manufactured under ISO 9001-2008 standards and is a filter material certified under European standards for drinking water.
  • AFM® is a registered trademark and is exclusively made by Dryden Aqua.

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AFM® exceeds the performance of quartz and glass sand by far

  1. Crystal clear water:AFM® filters much finer than quartz or glass sand. At 20 m/hr filtration speed a nominal filtration of 5 microns is achieved without flocculation – AFM® filters at least 30 % more organic substances than fresh quartz or glass sand. With optimised coagulation and flocculation with APF and ZPM, a nominal filtration of less than 0.1 microns can be achieved.
  2. Lower chlorine consumption means less secondary chlorine reaction products:chlorine is an excellent disinfectant. But in reaction with organic and inorganic substances it also produces undesirable, harmful reaction by-products such as trichloramine and THM‘s. The more chlorine is consumed the more secondary reaction by-products are produced. With AFM®we can remove far more substances than with sand or glass sand. This applies particularly in connection with coagulation and flocculation. Everything that can be filtered out and removed in backwash process doesn’t have to be oxidised. The better the filtration the lower the chlorine consumption and less disinfection by-products are produced.
  3. Bioresistant – no home for bacteria, viruses and other pathogens: sand is a good mechanical filter but it’s also an ideal breeding ground for bacteria. Within just a few days every grain of sand is colonised by bacteria. They immediately form mucus to protect themselves against the disinfectant. In this so-called «biofilm» live entire communities of bacteria and other pathogens – including Legionella. If you have no organic film in your filter there are also no Legionella.
  4. No trichloramine and no chlorine smell: the bacteria in the biofilm convert urea into ammonia which then reacts with chlorine to inorganic chloramine (mono, di- and trichloramine). Trichloramine causes the unpleasant chlorine smell and is also a severe health hazard. If however, no heterotrophic bacteria are present, urea remains in the water. It reacts with chlorine to the harmless chlorine urea. No biofilm – no trichloramine – no chlorine smells.
  5. Filter function remains good with AFM®for many years: No biofilm in the AFM® filter also means no channelformation to disrupt the filter function. Due to filter contamination the performance of a sand filter worsens dramatically after 6 – 12 months despite frequent backwashing. The performance of AFM® remains consistently high for many years.

 

What makes AFM® that effective?

  1. Clean Green glass: The raw material used for AFM® has to have a very specific glass quality. AFM® is only made from pure green glass which is the only glass that has the necessary chemical and physical properties to make AFM® self-sterilising.
  2. Ideal hydraulic properties: The raw material is broken into the optimal grain size and grain shape. The correct shape is crucial for the outstanding hydraulic characteristics of AFM®. Balls (glass beads or pearls) as well as plates are not suitable for clean water applications. For security reasons, no dangerous glass splinters are allowed to be present in the filter material. Our ISO certified manufacturing process ensures that this is not the case.
  3. Activation process: The AFM® activation process creates a mesoporous structure with a huge catalytic surface area. Typically crushed glass or sand has a surface area of 3‘000 m2 per m3 but activated AFM® has a surface area of over 1‘000‘000 m2 per m3 which is over 300 times greater surface area for adsorption and catalytic reactions. Hydroxyl groups on the surface give AFM® a strong negative charge known as the zeta potential that attracts heavy metals and organic molecules. In the presence of oxygen or oxidising agents the catalytic surface generates free radicals that oxidise pollutants and disinfects the surface of AFM®.

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Know how bacteria survives in a Swimming Pool!

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How to use AFM?

Note: Before FIRST use of AFM- Backwash the AFM for 10-15mins for 3 consecutive times with potable water and then rinse it or 1 hour.

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What is the recommended layering of AFM®?

If you are currently using sand or glass sand simply  replace this in your filter with AFM®. While sand has a specific weight of 1‘450 kg/m3, the specific weight of AFM® is 1‘250 kg / m3, and therefore it needs about 15 % less AFM® according to weight. For example: your filter has 150 kg of sand, only 125 kg of AFM® are needed.

AFM® is supplied in four different grain sizes and should be used as follows:

AFM® grain 0 = 0.25 to 0.5 mm grain size

AFM® grain 1 = 0.4 to 1.0 mm grain size

AFM® grain 2 = 1.0 to 2.0 mm grain size

AFM® grain 3 = 2.0 to 4.0 mm grain size

 

 

Benefits:

1 (2) 

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  • Crystal clear water – AFM® filters at least 30 % better than silica or glass sand.
  • Lower consumption of chlorine – Everything filtered out doesn´t need to be oxidized by chlorine. The better the filtration, the lower the chlorine demand.
  • No trichloramine – no chlorine smell: AFM® prevents growth of biofilm therefore eliminating trichloramine.
  • No biofilm – no Legionella: Biofilm is a slippery film of bacteria, most of which are friendly, but they provide a home for pathogens such as Legionella, Staphylococcus and (MRSA) Pseudomonas.
  • Chlorine-free systems – AFM® greatly reduces the oxidation demand of the water which makes it perfect for chlorine free systems.

 

 

APPLICATIONS OF AFM MEDIA

  1. Drinking water: AFM removes manganese, arsenate, iron and some priority chemicals
  2. Municipal Wastewater: AFM removes Phosphorus and Bacteria, BOD, COD and TOC
  3. Industrial Process water: AFM removes organic pollutants and oils, TSS, VSS and particles < 1 micron
  4. Industrial wastewater: Colours and fine fibres, Residual mineral oils.

 

Conclusion:

The chemistry of the glass, the particle shape and especially the activation process give AFM® these important properties to clearly outperform sand and glass sand filters .The large surface has a strong negative charge to adsorb organics and small particles. The surface also has metal oxide catalysts which produce free radicals and thus a high redox potential. Therefore AFM® is self-dis-infecting. AFM® prevents bacteria from settling to make it a unique, bio-resistant filter material.