The Key Role of Synergistic Use of Polyaluminum Chloride (PAC) and Polyacrylamide (PAM)

— An intuitive comparative experiment shows why "working together" beats "working alone"

Inwastewater treatment,flocculatio et sedimentatiointer praecepta communa et critical sunt. However, many users tend to use only one type of flocculant — most oftenpolyacrylamide(PAM). But does use PAM alone really achieve ideal purification results?

To answer this question, Henan Secco Environmental Technology Co., Ltd. designed a simple and intuitive comparative experiment. The results clearly demonstrate that the synergistic use ofchloridus polyaluminium(PAC) and polyacrylamide (PAM) is the key to efficient wastewater treatment.

I. Experimental Processus: Duo approximo, dramatically different results

Approach 1: Using only PAM

Take a wastewater sample and add only PAM solution. Mix, flocculate, and allow to settle following standard procedures.

phenomena observata:

Flores lentem formant, parvi et liberi sunt.

Velocitate tenens est, cum multa particula pulchra adhuc in supernatante suspendata est.

The final supernatant is visibly turbid, with low transparency and significant residual impurities.

Approach 2: Adding PAC first, then PAM

Exemplo aequalem sume exempli wastewater. Step 1 – add PAC and mix rapidly for coagulation. Step 2 – add PAM, mix slowly, then allow to settle.

phenomena observata:

Post additionem PAC particulae pulchrae rapide destabilizantur et aggregantur in maiores flores.

PAM further bridges these flocks into even larger, denser aggregates.

Settling is extremely fast, and the supernatant is crystal clear, with almost no visible solids suspended.

II. Experimental Results: A clear comparison

Contractus visionis percutit: aqua in cylindro sinistra flavus et turbilis manet, dum aqua a dextera est tam clara quam crystal. Is this the real difference brought by synergia.

III. Cur coniunctus utilizatur plus efficatior quam aut solus?

To understand this, we need to look at the distinct roles of these two products in wastewater treatment:

Polyaluminum chloridus (PAC) coagulante inorgano est. Focus eius est neutralizare cargas negativas super superficiem particiorum colloidorum et coxere layer duplicem, ita destabilizare participes fines suspendentes et congregare eos in flos minores (stage coagulation is). PAC effectively removes turbidity, color, and heavy metal ions.

Polyacrylamide (PAM) flocculans organicus est. Its main function is to use adsorption and bridging via its long molecular chains to further link the small flocs into large, dense aggregates, greatly accelerating settling and reducing suspended solids in the supernatant (flocculation stage).

Essentia synergiae est: PAC destabilizet et initiat aggregationem; PAM crescere et celeriter graditur.

Si solum PAM utilizatur, numerae particulas negativa cargatae finae non sunt effectively neutralisae, ergo PAM non potest effectiv pondere. Flores parvus manent, impleta est, et supernata manet turba.

Si solum PAC utilitur, tamen parva flora form are potest, liberi sunt et lentem solvit, et flores effugiant, prohibentes virum supernatantem.

Solo PAC post PAM effectum "1+1 > 2" facit.

IV. Conclusion: Scientific combination leads to efficient purification

Exerimentus ad conclusionem claram ducit:

In waste water treatment, PAC and PAM are not an "either/or" choice — they are a synergistic combination where both are essential.

Utrum unum solum non potest optimum flocculationem et sedimentationem facere.

Only by following the "coagulation first, flocculation second" process and scientifically combining PAC and PAM can you achieve the comprehensive goals of clear effluent, rapid settling, chemical savings, and cost control.

V. Henan Secco Environmental Technology Co., Ltd. – Your Trusted Flocculant Partner

Henan SeccoEnvironmental Technology Co., Ltd. is a high-tech enterprise specializing in the R& D, productio, et venditio aquarum chemicalorum tractionis. Our main products include:

Polyacrylamide (PAM): anionic, cationic, and nonionic series for various water types.

Polyaluminum chloridum (PAC): classem aquae bibentem, classem industrialem, classem altissimum puritatem albam et aliam specificationem.

et alios aquas purificationes.

We not only supply high-quality products, but also provide tailored selection advice and flocculation testing support to help every wastewater treatment facility find the most suitable synergistic solution.

If you are also experiencing issues such as "poor results from single-chemical use" or "turbid supernatant", please contact us. Henan Secco will provide full-process technical support — from laboratory jar tests to field applications — so that every drop of water is thoroughly purified.