Seawater UF System

A real-world case study on how Hinada engineered a 2,400 m³/day dual-stage (Sand Filter + PVDF UF) seawater treatment system for a shrimp farm in Indonesia   Background & Challenge: Unpredictable Seawater Intake in Indonesia Indonesia is one of the world's premier regions for commercial shrimp farming. However, coastal aquaculture operators face a constant, unpredictable risk: the quality of raw ocean intake water. For a commercial shrimp farming facility in Indonesia, raw seawater was drawn directly from coastal intake points. Over time, the farm’s engineering team encountered severe operational bottlenecks:   High Turbidity & Silt Loads: Coastal tides and heavy monsoon storms frequently spiked suspended solids (TSS) and silt levels, overwhelming standard filtration setups. Biological Outbreak Threats: Invisible marine pathogens, algae blooms, and bacteria bypassed basic filtration, threatening pond biosecurity and increasing shrimp mortality risks. Heavy Maintenance Downtime: Traditional media filters required constant manual cleaning and frequent media replacement due to rapid clogging   To protect their crop yield and ensure continuous daily production, the farm manager partnered with Hinada to design a customized, fully automated seawater treatment facility.   Technical Solution: Dual-Stage Physical Filtration (Sand Filter + PVDF UF) To satisfy the facility's daily demand of 2,400 m³/day (100 m³/h continuous flow) while protecting downstream equipment, Hinada engineered a dual-stage filtration skid: Raw Ocean Intake → Pressure Media Sand Filtration → Hinada PVDF Hollow Fiber UF Skid → Biosecure Shrimp Ponds   1. Primary Pre-Treatment: Media Pressure Sand Filtration The intake raw seawater first enters heavy-duty pressure sand filters. This primary barrier captures large organic debris, shell fragments, sand, and heavy silt, drastically reducing TSS loads before the water reaches the ultrafiltration membranes. Stage 1 Pre-treatment: Heavy-duty media sand pressure filters working alongside the PVDF Ultrafiltration skid.   2. Core Membrane Barrier: PVDF Hollow Fiber UF Skid Clarified water then enters the core Hinada PVDF Hollow Fiber Ultrafiltration Skid. Operating at a continuous design flow rate of 100 m³/h, the UF membranes feature a pore size precision of 0.02 – 0.1 microns, creating an absolute physical barrier that removes >99% of bacteria, colloidal matter, and fine suspended particles.   Full 2,400 m³/day (100 m³/h) Skid-Mounted Seawater PVDF Ultrafiltration System featuring UPVC anti-corrosion piping   3. Heavy-Duty Marine Engineering Operating in tropical, high-salinity marine environments causes rapid corrosion on standard industrial components. Hinada custom-engineered all manifolds, piping, and structural skid frames using non-metallic, seawater-resistant materials (UPVC/HDPE) to guarantee long-term operational durability.   4. PLC Smart Automation & CIP Integration To minimize manual labor costs and prevent membrane fouling, the system is fully automated via an integrated Siemens PLC panel. The skid automatically executes timed backwashing, air-scouring, and Clean-In-Place (CIP) cleaning cycles without disrupting pond supply lines. Automated Siemens PLC control cabinet, clean water storage tank, and distribution pumps ensuring seamless site operations. Engineering Project Specifications Application: Commercial Shrimp Aquaculture Seawater Intake Location: Indonesia Daily Treatment Capacity: 2,400 m³/day Design Flow Rate: 100 m³/h continuous operation Raw Water Source: High-Salinity Coastal Intake Seawater Core Technology: Pre-treatment Sand Filter + Hinada PVDF Hollow Fiber UF Skid Automation Level: Fully Automated PLC Control with Backwash & CIP Functions On-Site Results & Client Feedback Following installation, commissioning, and on-site testing, the 2,400 m³/day seawater UF system was successfully brought online. On-site evaluation and client inspection of Hinada PVDF Hollow Fiber UF modules in Indonesia The operational results delivered immediate value to the farm: Uncompromising Water Clarity: Effluent turbidity remains consistently low (<0.5 NTU), eliminating water quality fluctuations during coastal tides and rainy seasons. Enhanced Pond Biosecurity: Physical removal of microscopic pathogens reduced disease transmission risks, stabilizing overall crop survival rates. Reduced Operational Labor: Automated backwashing routines eliminated manual filter maintenance, lowering daily labor overhead.   Client Feedback: ""Before installing Hinada’s UF system, we struggled with seasonal algae blooms and bacterial outbreaks that wiped out up to 40% of our nauplii batches. Since commissioning in 2022, our intake water has remained consistently crystalclear, and our postlarval health has improved dramatically. The system runs with minimal supervision – the automatic backwash schedule is so reliable that our operators only need to check it once per shift. When we had a minor pressure drop issue during the rainy season, Hinada’s technical team responded within 2 hours via WhatsApp and guided us to resolve it in less than a day. We are now planning our third expansion, and Hinada is our first call. They don't just sell membranes; they understand shrimp biology." — Statement from the owner of Hatchery Manager, CV. Sumber Hatchery Bangka Tailored Membrane Solutions by Hinada This successful installation in Indonesia showcases how combining field engineering expertise with high-performance PVDF membrane technology protects aquaculture operations. Beyond aquaculture water treatment, Hinada engineers and manufactures customized membrane systems globally for: Industrial water purification and recycling Drinking water treatment facilities Reverse Osmosis (RO) pre-treatment skids Municipal wastewater recovery   Secure Your Farm's Water Supply with Hinada Are unpredictable raw water parameters affecting your farm's productivity? Contact Hinada’s engineering team for a custom technical evaluation and system proposal tailored to your daily flow requirements.   👉 Contact Hinada Engineering Experts Right Now.