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Municipal water treatment and sludge dewatering

For municipal waste water sector we offer Selection and supply of flocculants for sludge dewatering and conditioning , consulting and solving problematic cases, where usual polymers do not yield satisfactory results, consulting and selection of physical-chemical waste water treatment schemes for municipal WWTP.

Industrial waste water and sludge dewatering

Ecochemicals offers service and chemicals supply for industry effluent treatment, liquid-solid, and liquid - liquid phase separation.

Case 1. Meat factory effluent

Case 2. Fiberglass factory 

Case 3. Water separation from used oil

Case 4. Textile factory effluent 

Case 5. Fish factory effluent

Experienced stuff of Ecochemicals offers full service in determination the most effective reagents and their dosages. We provide consultations, which are based on our long term experience plus laboratory and industrial trials.

In case of variations of the process characteristics and as a result decrease efficiency of reagent program, we will immediately repeat experiments and offer the best alternative on changed process. So thats why our customers can be sure that for them will be available the highest quality products and well-timed professional consultations.

Main industries where UNAFLOC can be applied: Municipal waste water Oil industryPaper industryTextile industryFood industryChemical industryGalvanic industryDredgingOther industries

If you have any technical question from Unafloc applications in these processes, please, do not hesitate to ask us.

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Meat plant from production and slaughter had high BOD – 4000-6000mg/l, fat up to 500mg/l. Wastewater after treatment with a flotation device is discharged into the city’s sewage system. Release requirements BOD up to 1000mg/l, fat up to 100mg/l. The factory paid heavy fines for pollution overloading the city’s system.

Our technicians have found that a combination of organic and inorganic coagulants and anionic flocculants gives good cleaning results. After installing reagents before flotation systems, cleaning results BOD-800mg/l, fat 50-70mg/l. The cost of the reagents was relatively very low compared to paying fines for heavy pollution in the past.

Production wastewater reaching the flotation system was highly contaminated with COD up to 10000mg/l. For decontamination, the plant uses ferric chloride coagulant at a dose of 3 kg/m3 and flocculant at a dose of 1-5 g/m3. The results were satisfactory, but the use of coagulants was very high and therefore expensive. Ferric chloride in this case was stored in 1 m3 tanks and plenty of space. Ferric chloride is also an aggressive liquid with special storage conditions.
Our technicians have found that it is better to use a special type of absorbent instead of ferric chloride as a coagulant. The dose was approx. 1-1.5kg/m3 and the results were good. The absorbent is a powder, non-aggressive, non-toxic. The plant switched from ferric chloride to an absorbent. The treatment cost was lower and less sludge was produced after flotation treatment.

Panaudotos alyvos valymo įmonė gauna alyvą su dideliu vandens kiekiu (50%). Kadangi alyva yra stabili emulsija, vanduo sunkiai atsikiria iš alyvos net naudojant alyvos/vandens separatorių.
Panaudojus 3-6kg POLIFLOCK deemulgatoriaus į 1m3 panaudotos, pašildytos iki 70oC alyvos prieš separatorių, gaunamas puikus rezultatas, kai alyvoje lieka 1% vandens.
Nuotraukoje parodyta alyva ir atskirtas vanduo su skirtingomis dozėmis ir demulgatoriaus tipais:

Textile factory effluent is rich in dyes, high CHDS and zinc and other heavy metals. The color of the wastewater changes from red to green, blue, etc. All wastewater is discharged into the city system and reaches the city’s sewage treatment plant. Unfortunately, the biological system cannot effectively remove the dye, and the treated sewage into the river has a color.
The use of 100-1000mg/l Poliflock coagulant and 1mg/l Poliflock flocculant in the flotation treatment system helps to remove dyes and reduce COD and Zn to acceptable levels. After treatment, the wastewater released into the city network is off-white or weak in color.

The fish factory discharges highly polluted wastewater into the city’s networks. The effluent is high in BOD, grease and very high P. The local sewage treatment plant is not working efficiently and the plant is paying fines to the municipality.
After using 500mg/l Poliflock coagulant and 5mg/l Poliflock flocculant in the flotation system, contaminants were removed to an acceptable level.