The synergistic effect of paint circulating water treatment agents and deodorants requires a multi-dimensional technological system encompassing water purification, odor control, microbial inhibition, and system stability. Through functional complementarity and process synergy, the two can significantly improve the operational efficiency and environmental performance of circulating water systems.
At the basic water purification level, the core functions of paint circulating water treatment agents are to remove suspended solids, adjust pH, and inhibit scaling. For example, flocculants, through charge neutralization and bridging, cause paint residue, pigments, and other particulate matter to coagulate into large precipitates, reducing water turbidity; scale inhibitors, by chelating calcium and magnesium ions, prevent the formation of hard scale on heat exchanger surfaces. The addition of deodorants further decomposes residual organic pollutants in the water, such as unflocculated resin molecules and solvent residues. These organic substances are not only a major source of odor but also provide nutrients for microorganisms, accelerating their reproduction. The plant extracts or microbial flora in deodorants can decompose organic matter into carbon dioxide and water through oxidation-reduction reactions, reducing odor generation at the source and lowering the load on subsequent microbial treatment.
Microbial control is a crucial element in the synergy between these two approaches. If large amounts of bacteria and fungi proliferate in circulating water, their metabolic products can exacerbate odor problems and even cause pipe corrosion. While traditional disinfectants can quickly kill microorganisms, long-term use can lead to drug resistance, and residual chemicals may cause secondary environmental pollution. The bioactive components in deodorant, such as lactic acid bacteria and photosynthetic bacteria, can competitively inhibit and disrupt the microbial environment. For example, some bacterial groups can secrete organic acids to lower the local pH, inhibiting the reproduction of pathogens; others decompose organic matter, disrupting the microbial nutrient chain. This bio-inhibition method complements chemical disinfectants, extending the disinfection cycle while reducing the amount of chemical agents used, achieving a more lasting microbial control effect.
In terms of process optimization, deodorant can achieve a synergistic "front-end interception + back-end purification" model with water treatment agents. At the inlet of the circulating water system, the water treatment agent removes most suspended solids and scale-forming ions through pretreatment such as flocculation and scale inhibition, reducing the risk of subsequent pipeline blockage. At the return water system, deodorant deeply purifies existing odor substances, preventing malodorous gases from escaping into the workshop environment. For example, in the circulating water system of a paint booth, paint mist captured by the water curtain cabinet is initially treated by the water treatment agent before entering the storage tank and mixing with deodorant. It is then further adsorbed by a spray tower to remove residual volatile organic compounds, ultimately achieving compliant emissions. This segmented treatment method improves the efficiency of individual agents and avoids resource waste caused by functional overlap.
Improved system stability is another important manifestation of synergistic efficiency. Paint circulating water contains a large amount of organic matter, which can easily lead to excessive foaming and water quality deterioration, affecting equipment operating efficiency. The defoaming component in deodorant can quickly break the surface tension of foam, reducing foam encapsulation of heat exchangers and ensuring sufficient contact between the water treatment agent and the water. Simultaneously, the low-molecular-weight substances produced by its decomposition of organic matter can act as dispersants for scale inhibitors, enhancing the suspension capacity for small particles and preventing secondary sedimentation. The combined effect of these physicochemical processes allows the circulating water system to maintain stable water quality parameters during long-term operation, extending equipment lifespan.
Optimizing environmental performance is the ultimate goal of this synergistic effect. Traditional water treatment methods often rely on strong oxidizing agents, which, while quickly solving problems, may produce toxic byproducts such as halogenated hydrocarbons. The synergistic system of deodorant and water treatment agents, however, emphasizes biodegradability and eco-friendliness. For example, when plant-derived deodorant is used in conjunction with biodegradable polyacrylamide flocculants, it can be completely decomposed into harmless substances by microorganisms after water purification, avoiding long-term pollution of water bodies and soil. This green treatment model not only complies with environmental regulations but also reduces end-of-pipe treatment costs for businesses.
