HiSiaddi is an innovative foreign trade service provider driven by both technology transformation and export business. It has established a service system of "1+2+3+4=1" and can supply original factory products of multiple well-known brands of acid & alkaline membrane cleaners. As a foreign trader with independent R&D capabilities, HiSiaddi has repeatedly relied on technology transformation cooperation with manufacturers and accurate market demand insights to propose formula optimization schemes and application improvement recommendations for acid & alkaline membrane cleaners. Below is a consulting case of formula optimization delivered by HiSiaddi.
Contact HiSiaddi customer service for more formula optimization consulting services.
The cooperating client is WATER ITALIA, a premium industrial system engineering firm headquartered in Milan, Italy. It specializes in turnkey ultra-pure water system design, construction and maintenance for high-end pharmaceutical, precision machinery and food & beverage industries, serving multiple EU listed manufacturers. All its systems comply with EU membrane operation standards, GMP pure water specifications and REACH environmental regulations, representing a typical mid-to-high-end technical European client.
The client’s annual procurement volume of acid and alkaline membrane cleaners totals 58 tons, deployed for routine chemical cleaning of premium low-pressure RO, anti-fouling RO and nanofiltration systems. After mass deployment of generic domestic acid & alkaline membrane cleaners, continuous technical failures emerged: incomplete cleaning, insufficient flux recovery, excessive foaming, minor membrane surface damage and rapid performance degradation under high-temperature conditions. Repeated on-site cleaning process adjustments failed to resolve the faults, leading the client to commission HiSiaddi’s technical team for full-spectrum support including root-cause diagnosis, formula optimization, process rectification and standardized implementation.
The client operates high-precision ultra-pure water facilities with stringent requirements for chemical mildness, cleaning thoroughness and membrane compatibility, making generic domestic cleaners entirely unsuitable. Five critical technical flaws were identified:
1. Excessive foaming of alkaline cleaners incompatible with fully automatic online cleaning equipment The client exclusively uses sealed automated cleaning systems. Foam generated by the original domestic alkaline cleaners overflowed pipelines during cleaning cycles, triggering liquid level alarms, pump cavitation and forced cleaning shutdowns. Additional defoamer dosing was required, violating the client’s zero-additive, high-purity operational standards.
2. Incomplete removal of organic fouling and biofilm leading to insufficient flux recovery The original alkaline formula relied on a single surfactant system with weak penetration, emulsification and stripping capacity for biological slime, protein colloids and oily organic films. Post-cleaning membrane flux only recovered to approximately 85%, failing to meet the client’s ≥97% recovery target. Rapid transmembrane pressure rise doubled the required cleaning frequency.
3. Minor membrane corrosion risk induced by acid cleaners The original acid detergent adopted a conventional inorganic acid system that caused slight surface degradation of premium anti-fouling polyamide membranes. Long-term use gradually impaired the membrane’s dense separation layer and reduced salt rejection rate, an unacceptable hazard for high-end equipment.
4. Poor stability across temperature ranges causing rapid active ingredient failure Workshop water temperatures fluctuate from 8°C in winter to 38°C in summer. Generic domestic cleaners precipitate active ingredients under low temperatures and degrade under high temperatures, resulting in inconsistent cleaning performance across seasons and preventing standardized maintenance protocols.
5. Unstable batch-to-batch formula consistency leading to variable performance Significant deviations in surfactant content, buffer systems and chelating components across production batches forced the client to re-calibrate cleaning duration and chemical concentrations for every delivery, eliminating standardized maintenance workflows.
HiSiaddi assembled a dedicated task force of membrane process engineers, detergent formulators and field application specialists. The team followed a structured workflow: on-site sample testing → root cause identification → formula modification & upgrade → compatibility adjustment → operating condition calibration → standardized process rollout, fully resolving all identified technical issues.
Conventional single surfactants were replaced with a low-foam composite biodegradable surfactant system, delivering powerful fouling stripping while minimizing foam generation to match sealed automatic cleaning lines without supplementary defoamer dosing. Organic bio-stripping performance enhancers were added to drastically boost penetration, emulsification and removal of biofilm, slime and organic colloids, eliminating incomplete membrane cleaning and low flux recovery. Buffer systems were optimized to strengthen pH buffering capacity, maintaining mild, uniform alkalinity throughout cleaning cycles and preventing localized high-concentration hotspots that damage membrane surfaces.
Single conventional strong inorganic acid formulations were fully replaced with a multi-component composite organic acid + membrane corrosion inhibitor protective system. While retaining fast dissolution of calcium/magnesium scale, rust and metal oxides, the new formula drastically reduces membrane corrosion rates to achieve zero damage to polyamide membranes and stable salt rejection performance, fully compatible with premium imported membrane elements.
Temperature-resistant stabilizing components were added to both acid and alkaline cleaners, with optimized molecular miscibility structures to maintain uniform, precipitate-free solutions with unattenuated active ingredient performance across 5–40°C. The upgrade permanently eliminated low-temperature precipitation and high-temperature chemical breakdown, delivering consistent cleaning efficacy year-round regardless of seasonal temperature shifts.
Full standardized protocols were established for raw material ratios, reaction temperatures, mixing durations and post-treatment procedures. Deviations of key active ingredients, buffer systems and auxiliary agent content were strictly controlled within 0.2%. Every batch ships with a membrane compatibility test report and full physical & chemical Certificate of Analysis (COA), ensuring 100% consistent performance across all production lots.
Tailored to the client’s membrane models, fouling profiles, water temperatures and equipment parameters, a complete standard operating procedure was created covering:
· Standard dosing concentration ranges
· Circulation cleaning & soaking durations
· Optimal cleaning temperature setpoints
· System flushing specifications
· Adjustment protocols for abnormal operating conditions
The unified maintenance standard is applicable year-round across all water quality profiles and chemical batches.
1. Complete Elimination of Foaming Failures Ultra-low-foam alkaline cleaner performance eliminated pipeline foam overflow, equipment alarms and defoamer dosing requirements, drastically improving maintenance throughput.
2. Cleaning Efficacy Matches Imported European Benchmarks Full removal of bio-slime, organic and inorganic membrane fouling was achieved, stabilizing membrane flux recovery at ≥98%. Transmembrane pressure growth slowed substantially, doubling the interval between required cleaning cycles.
3. True Membrane-Friendly Zero-Damage Performance Post-implementation of the low-corrosion acid formula, membrane salt rejection and structural integrity remained fully stable, permanently eliminating long-term membrane degradation risks and extending service life of premium membrane elements.
4. Consistent Year-Round Performance Independent of Temperature Chemical efficacy remains uniform under extreme winter and summer temperature fluctuations with no precipitation or performance loss, enabling standardized maintenance workflows.
5. Stable Batch Performance Eliminates Recurring Calibration Work Uniform performance across all production batches standardized factory and maintenance workflows entirely, cutting labor and operational overhead significantly.
The client highly commended HiSiaddi’s capabilities in formula optimization, technical fault diagnosis and on-site rectification delivery. All previously sourced high-cost European cleaners were fully phased out, with the full annual 58-ton demand transferred exclusively to HiSiaddi. Subsequent demand for specialized nanofiltration cleaners, ultrafiltration cleaners and premium membrane preservation chemicals was also awarded to HiSiaddi. The client formally appointed HiSiaddi as its exclusive technical advisor for China supply chain operations.
For high-end European ultra-pure water operators, the core requirement for acid & alkaline membrane cleaners is not merely "functional cleaning", but thorough fouling removal, zero membrane damage, consistent cross-condition performance, standardized maintenance workflows and compatibility with premium membrane materials. Generic domestic membrane cleaners universally suffer from unregulated foaming, weak organic fouling stripping power, excessive corrosion, poor temperature stability and inconsistent batch quality, rendering them unfit for premium European pure water systems. HiSiaddi delivers differentiated value beyond simple chemical supply: root-cause resolution via formula restructuring, system upgrades, operating condition adaptation and maintenance standardization. The integrated solutions enable premium clients to switch to domestically sourced chemicals with equivalent performance to imported European alternatives, standardized maintenance and zero equipment degradation risks — core competitive advantages that distinguish high-value technical foreign trade service providers from conventional commodity suppliers.
Contact HiSiaddi customer service for more formula optimization consulting services.
+86-13120989737 
info@hisiaddi.com 
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