EFT :: Environment Future Technology

◐ Product Summary

HOC SERIES were developed to increase the economy and efficiency when used at sites as alternatives to inorganic coagulants such as aluminum sulfate(liquid cake, solid cake), PAC, and ion salt which are now generally used in waste water disposal plant. Our Company’s HOC SERIES can obtain excellent results with the input of 1/5~1/10 of the amount of general inorganic coagulant. As there is no need to input neutralizing agent or only a small amount of them is sometimes needed, the treatment coat is greatly reduced.

◐ Composition

apparence : citrine liquid
main components : chitosan added compound
specific gravity : 1.3 ± 0.1
pH : 3.0 over (10% solution)

Application

electronic / food oil

refinery/ chemical

Steel making

Paper manufacture

Usage

Injection of Undiluted

Solution or use Diluted

Input

Depending on the waste water

50 ~ 300ppm

Characterization of product

1. Reduces sludge generation by more than 30%

2. Chemical consumption is 1/5~1/10 of those of the existing inorganic coagulant

3. Depending on the condition of the waste water, neutralizing agents are not always needed

4. Efficiency of waste water treatment increases by 10%

5. The work is made easier than that in existing inorganic coagulants

6. Prevents the deterioration of facilities as the corrosiveness and oxidation properties are low

7. Additional effects (reduction of costs of seeding and electricity) due to the increase of

chemical treatment efficiency

◐ Effects of HOC SERIES

⇒ treated water analysis results compared with those of other companies’ chemicals in the waste
	water of electronics plants

	Aluminum sulfate(liquid)	Ferric	PAC	HOC
Conductivity (㎕/㎝)	1332	2000	810	655
Turbidity(NTU)	3	5	1.2	0.2
Na Content(ppm)	236	300	85	57

Examples of HOC applications

Coagulant	Raw Water	HOC- II	Alum	Ferric Chloride
Dosage (ppm)	-	60	600	600
COD	50	35	35	12
Neutralizing agen	-	not used	used	used

HeadOffice.Factory : KyungNam Yangsan-city Aegok-dong 702 / E.F.T / Tel 055)364-5611 / Fax 055)364-5615