HPDE Forum
Co-Innovation Forum on Advanced Filtration & Separation and Evaporation & Crystallization
Conference Themes & Topics
Centering around the core theme of "Synergistic Coupling of Industrial Water Treatment Filtration/Separation and Evaporation/Crystallization," this forum features five major sections and eight core topics, covering the entire technology chain from pretreatment filtration to end-stage crystallization and salt separation:
Section 1: Application of Mechanical Separation in the Field of Evaporation & Crystallization
Topic 1: Solid-Liquid Separation of Crystal Slurry After Evaporation & Crystallization
Focuses on the subsequent solid-liquid separation stage of crystal slurry discharged from the evaporator—specifically the equipment selection and process matching for centrifuges, belt filters, and filter presses. It analyzes the impact of crystal particle size distribution on separation efficiency and discusses engineering optimization for mother liquor entrainment, crystal purity, and washing water reuse.
Topic 2: Deep Dewatering of Industrial Sludge: A Separation Revolution from 99% to 60% Water Content
Systematically introduces plate-and-frame filter presses, integrated belt thickening and dewatering systems, multi-plate screw press dewaterers, and electro-osmotic dewatering technologies. It analyzes the effect of chemical conditioning (PAM/PAC/lime/iron salts) on sludge dewatering performance and compares the economic efficiency between the two sludge disposal pathways: "dewatering drying + incineration" vs. "dewatering + construction material utilization."
Topic 3: Application of Centrifugal Separation in Fermentation Broth and Pharmaceutical Mother Liquor
Focuses on key stages such as biomass separation, cell debris removal, and crystallization mother liquor recovery in the pharmaceutical and fermentation industries. It compares application scenarios for disc stack centrifuges and decanter centrifuges, analyzes domestic equipment selection strategies under import substitution trends, and explores closed isolation design alongside solvent recovery safety requirements.
Section 2: Innovative Applications of Membrane Separation, Membrane Distillation, and Forward Osmosis in Evaporation & Crystallization
Topic 4: RO/NF/DTRO Membrane Concentration: How to "Lighten the Burden" for Evaporators
Delves into the engineering applications of Reverse Osmosis (RO), Nanofiltration (NF), and Disc-Tube Reverse Osmosis (DTRO) in high-salt wastewater pre-concentration. It quantifies the reduction effect of a 60%–80% membrane concentration volume reduction on evaporator investment scale and operational steam consumption, and analyzes membrane fouling control, cleaning strategies, and the economic balance point of membrane lifespan.
Topic 5: High-Salt Water NF Salt Separation: The Economic Threshold of Membrane-Based Monovalent/Divalent Salt Separation
Focuses on the selective separation mechanism of nanometer filtration membranes for monovalent salts (NaCl) and divalent salts (Na₂SO₄). It establishes economic models across influent concentration, recovery rate, membrane area investment, and salt product purity to clarify the applicable boundaries and investment thresholds of membrane salt separation compared to thermal salt separation.
Topic 6: Forward Osmosis (FO)—Industrialization Prospects of the Next-Generation Pressureless Membrane Concentration Technology
Provides a forward-looking analysis of the technical advantages of forward osmosis technology ("zero hydraulic pressure, low energy consumption, anti-fouling"). It examines industrialization bottlenecks such as draw solution screening, regeneration energy consumption, and membrane flux decline, showcasing the latest pilot data in the concentration of concentrated brine from seawater desalination and the treatment of oilfield reinjection water.
Section 3: Intelligence and Digital Twins in Filtration & Separation
Topic 7: Digital Twin-Driven Intelligent Optimization of Filtration & Separation Processes
Explores the technical path of building digital twin models in filtration and separation equipment—by collecting real-time operational data such as pressure differential, flow rate, turbidity, and temperature, the operating status of physical equipment is synchronously mapped in a virtual space. This enables intelligent decision-making, including membrane fouling trend prediction, demand-driven backwashing triggers, and dynamic balance of evaporator feed concentration. It showcases engineering case studies of PLC fully automatic control, remote O&M cloud platforms, and AI-driven cleaning optimization in chemical wastewater ZLD (Zero Liquid Discharge) projects, analyzing the operational transformation model and cost-reduction/efficiency-enhancement data moving from "human-monitored machinery" to "self-managed machinery."
Section 4: Green Filtration Materials and Equipment Upgrades
Topic 8: Technology Roadmap of Industrial Wastewater Filtration & Separation: From Millimeters to Nanometers
Systematically covers the entire precision filtration technology system, including walnut shell filters for oilfield water treatment (millimeter scale), fiber ball/fiber bundle filters (micrometer scale), and ceramic ultrafiltration membranes (nanometer scale). It establishes a filtration precision selection decision matrix under different oil reservoir permeabilities and influent water qualities, providing an engineering design roadmap "from millimeter to nanometer." It highlights green equipment innovations such as high-temperature resistant ceramic membrane evaporation components (up to 200°C), anti-scaling evaporation tubes (maintenance-free for 8,000 hours of continuous operation), and titanium alloy/duplex steel shells, discussing the quantified contribution of material upgrades to extending equipment life and reducing maintenance costs.
Section 5: Coupling and Customization of Filtration/Separation and Evaporation/Crystallization Systems
Topic 9: Crystallization Salt Separation—The Separation and Purification Logic from Mixed Salt to Pure Salt
Systematically explains the principles and engineering practices of three major technological routes: thermal salt separation (utilizing differences in solubility-temperature curves), freeze crystallization (water freezing out to separate pure ice crystals), and membrane salt separation (NF selective permeation). It analyzes resource utilization pathways and economic benefits for achieving sodium chloride purity >99% and sodium sulfate purity >98%. It showcases the full-chain coupled process design—"pretreatment filtration → membrane concentration reduction → MVR evaporation → crystallization salt separation → drying and packaging"—tailored for wastewater across chemical, coal chemical, lithium battery, and other industries, exploring the engineering value and return on investment of transitioning from a "one-size-fits-all blueprint" to a "one water, one strategy" customized approach.
