1. Case Basic Information
1.1 Company Overview
Hella Water Treatment Equipment Technology Co., Ltd. is a leading provider of large-scale municipal and industrial water purification solutions, specializing in integrated modular water treatment plants. With over 20 years of industry experience, the company adheres to national and international standards (GB5749-2020, ISO) and offers end-to-end services from project design, equipment supply, to on-site installation and after-sales support. Its modular systems are widely used for groundwater treatment, municipal water supply, and industrial water purification, featuring small footprint, energy efficiency, and intelligent control. For more water treatment products, visit [water treatment product].
1.2 Project Background
This project is a new integrated water purification plant designed to address municipal water supply needs, with a daily treatment capacity of 15,000m³ (expandable to 20,000m³/day by 2030). The water source is groundwater extracted from 5 new wells (4 in use, 1 standby) with a single well output of 100m³/h and a total daily intake of 9,600m³ (to be expanded to 15,000m³). The treated water meets the national “Sanitary Standard for Drinking Water” (GB5749-2020) and supplies domestic water to local residents, with a comprehensive water use index of 115L/person·d.
1.3 Raw Water & Target Water Quality Data
Raw Water Quality (Groundwater)
| Parameter | Value Range | Unit | Compliance Reference |
|---|---|---|---|
| Turbidity | 3-10 | NTU | GB 14848-2020 Class III Groundwater |
| pH | 6.5-8.5 | pH | – |
| Total Hardness (as CaCO₃) | 100-300 | mg/L | – |
| Iron (Fe) | 0.3-1.0 | mg/L | – |
| Manganese (Mn) | 0.1-0.5 | mg/L | – |
| Organic Matter | 5-15 | mg/L | – |
| Bacteria Count | 10²-10⁴ | CFU/mL | – |
| Turbidity | 3-10 | NTU | – |
Target Water Quality (Drinking Water)
| Parameter | Standard Value | Unit | Compliance Reference |
|---|---|---|---|
| Turbidity | ≤0.5 | NTU | GB5749-2020 |
| pH | 6.5-8.5 | pH | – |
| Total Hardness (as CaCO₃) | ≤450 | mg/L | – |
| Iron (Fe) | ≤0.3 | mg/L | – |
| Manganese (Mn) | ≤0.1 | mg/L | – |
| Organic Matter | ≤3 | mg/L | – |
| Bacteria Count | Not Detected | CFU/mL | – |
| Residual Chlorine | 0.3-0.5 | mg/L | – |
| Conductivity | ≤400 | μS/cm | – |
2. Core Pain Points and Requirements of the Project
2.1 Raw Water Quality Pain Points
- Turbidity and Suspended Solids: Turbidity (3-10 NTU) and suspended solids affect water clarity and pose fouling risks for subsequent processes.
- Iron and Manganese Contamination: Excessive iron (0.3-1.0 mg/L) and manganese (0.1-0.5 mg/L) cause water discoloration and odor.
- Organic Matter and Bacteria: Organic pollutants and bacteria (10²-10⁴ CFU/mL) pose health risks and require effective disinfection.
- Hardness: Moderate total hardness may lead to scaling in pipelines and water-using equipment.
2.2 Project Operation Requirements
- Treatment Capacity: 15,000m³/day (expandable to 20,000m³/day), with 3 modular units operating in parallel (5,100m³/day per unit).
- Water Quality Compliance: Meet GB5749-2020 “Sanitary Standard for Drinking Water” for all indicators.
- Automation Level: Fully automatic PLC control with remote monitoring, DCS system, and minimal manual intervention.
- Energy Efficiency: Gravity flow design after initial lifting, frequency conversion control for pumps, and low energy consumption per cubic meter of water.
- Space Saving: Modular design with 60% smaller footprint compared to traditional water plants.
- Durability: Anti-corrosion materials (stainless steel, FRP) for long-term groundwater treatment.
- Emergency Response: Reserved process measures for water quality emergencies; backup power (400KVA diesel generator) and equipment redundancy.
3. Hella Water Customized Solutions
3.1 System Model and Core Configuration
Hella Water provides the HLIM-15KT Integrated Modular Water Purification System, integrating neutralization, filtration, ultrafiltration (UF), reverse osmosis (RO), disinfection, and intelligent control modules. The detailed configuration is as follows:
| No. | Part Name | Description |
|---|---|---|
| 1 | Pretreatment System | Neutralization unit + 3 quartz sand filters (4000×8000×4500mm) + 3 activated carbon filters (4000×7000×4500mm) |
| 2 | Deep Purification System | 3 UF water purification units (210m³/h net output per unit) + RO system for hardness reduction |
| 3 | Disinfection System | 3 sets of UV sterilizers (UVC-2100) + 2 sodium hypochlorite generators (1000g/h, 1 use 1 standby) |
| 4 | Storage & Distribution | 2×1500m³ stainless steel clean water tanks + secondary water supply system (horizontal centrifugal pumps) |
| 5 | Control System | DCS central control system + 3 on-site PLC control stations + touch screens + video monitoring (18 cameras) |
| 6 | Auxiliary Equipment | Backwash system (Roots blowers, centrifugal pumps) + 400KVA diesel generator + laboratory equipment |
| 7 | Piping & Valves | Factory piping system + electric regulating butterfly valves + manual telescopic butterfly valves |
For more details on ultrafiltration systems, visit [ultrafiltration].
3.2 Key Technical Parameters of HLIM-15KT
| Parameter | Specification |
|---|---|
| Daily Treatment Capacity | 15,000m³ (expandable to 20,000m³) |
| Modular Units | 3 units (5,100m³/day per unit) |
| Filtration Rate (Quartz Sand) | 7-10 m/h |
| UF Membrane Flux | 50 L/m²·h |
| Disinfection Efficiency | Bacteria removal rate ≥99.99% |
| Total Installed Power | ~361kW |
| Power Supply | 380V/3P/50Hz + 400KVA diesel generator backup |
| Design Service Life | 15 years |
| Footprint Reduction | 60% smaller than traditional water plants |
3.3 Process Design
3.3.1 Core Treatment Process
Raw Water → Neutralization → Quartz Sand Filtration → Activated Carbon Filtration → Precision Filtration → UF → RO → Sodium Hypochlorite Disinfection → Clean Water Tank → Secondary Water Supply → Users
3.3.2 Key Unit Design
- Quartz Sand Filtration: 3 V-type filters with 1.4m thick filter layer (0.95-1.35mm quartz sand); air-water backwashing (air intensity 15 L/s·m², water intensity 4-5 L/s·m²) to remove suspended solids, iron, and manganese.
- Activated Carbon Filtration: 3 filters with 1.5m thick activated carbon layer; removes organic matter, residual chlorine, and odors; backwashing cycle 6 days.
- UF/RO System: UF membranes (865 components total) remove colloids and microorganisms; RO system reduces hardness and TDS to meet drinking water standards. For pre-treatment systems, see [pre treatment filtration system].
- Disinfection: UV sterilizers (150W-20) for instant bacteria killing; sodium hypochlorite dosing (1-1.5mg/L) for residual protection. For chemical dosing systems, see [chemical dosing system].
- Control System: DCS central control with real-time monitoring of flow, pH, turbidity, and residual chlorine; automatic start/stop, backwashing, and fault alarms.
4. Project Effect Verification
4.1 Produced Water Quality Test Results
| Parameter | Raw Water Value | Produced Water Value | Removal Efficiency |
|---|---|---|---|
| Turbidity | 8 NTU | ≤0.5 NTU | ≥93.8% |
| Iron (Fe) | 0.8 mg/L | ≤0.3 mg/L | ≥62.5% |
| Manganese (Mn) | 0.3 mg/L | ≤0.1 mg/L | ≥66.7% |
| Organic Matter | 12 mg/L | ≤3 mg/L | ≥75.0% |
| Bacteria Count | 10⁴ CFU/mL | Not Detected | 100% |
| Total Hardness | 250 mg/L | ≤150 mg/L | ≥40.0% |
| Residual Chlorine | – | 0.3-0.5 mg/L | – |
4.2 System Operation Performance
- Stability: Continuous 72-hour operation shows water quality fluctuation ≤±2%, meeting GB5749-2020 standards.
- Energy Efficiency: Energy consumption ~0.3 kWh/m³ of treated water, 30-50% lower than traditional water plants.
- Automation Effectiveness: 90% reduction in manual intervention; automatic backwashing and fault alerts minimize downtime.
- Space Saving: Modular design reduces overall footprint by 60%, optimizing land use for municipal projects.
- Emergency Response: Backup generator ensures continuous operation during power outages; redundant equipment (pumps, disinfection) enhances reliability.
4.3 Compliance and Application
- Standards Compliance: Meets GB50013-2018 “Outdoor Water Supply Design Code”, GB5749-2020 “Sanitary Standard for Drinking Water”, and ISO 9001 quality management requirements.
- Case Validation: Similar modular systems deployed in municipal water supply projects achieve 99% operational availability and customer satisfaction ≥96%. For municipal water supply solutions, visit [municipal water supply subject].
5. Case Corresponding Product Quotation Description
5.1 Main Equipment Quotation (Estimated)
| Item | Model | Qty | Total Price (USD) | Description |
|---|---|---|---|---|
| Integrated Modular Purification Units | HLIM-15KT | 3 | 1,800,000 | Each unit includes quartz sand filter, activated carbon filter, UF/RO module |
| Disinfection System | – | 1 | 220,000 | UV sterilizers + sodium hypochlorite generators |
| Clean Water Tanks & Supply System | – | 1 | 380,000 | 2×1500m³ stainless steel tanks + secondary water supply pumps |
| Control & Monitoring System | – | 1 | 350,000 | DCS central control + PLC stations + video monitoring |
| Auxiliary Equipment | – | 1 | 250,000 | Backwash system + diesel generator + laboratory equipment |
| Total Estimated Price | – | – | 3,000,000 | Turnkey project price (equipment, installation, commissioning) |
5.2 Terms & Conditions
| Term Type | Details |
|---|---|
| Payment Term | T/T: 30% deposit, 40% during production, 20% before delivery, 10% after commissioning |
| Lead Time | 90 days (design + production + installation) |
| Warranty | 12 months from commissioning; free repair/replacement for non-human-induced failures |
| After-Sales Support | Free online technical support for 5 years; on-site maintenance available |
| Expansion Option | Modular design allows adding units to expand capacity to 20,000m³/day |
5.3 Annual Consumables Cost (Estimated)
| Consumable Name | Specification | Annual Consumption | Annual Cost (USD) |
|---|---|---|---|
| Quartz Sand | 0.9-1.35mm | 30 tons | 6,000 |
| Activated Carbon | 2-4mm | 10 tons | 15,000 |
| UF Membranes (10% replacement) | – | 87 pieces | 87,000 |
| Filter Elements | Precision filter | 150 pieces | 4,500 |
| Disinfection Chemicals | Sodium hypochlorite | 5 tons | 3,500 |
| Total | – | – | 116,000 |
6. Common Questions (FAQ)
6.1 Maintenance and Consumables
Q1: How often do key filter media and membranes need to be replaced?A1: Quartz sand (2-3 years), activated carbon (1-2 years), UF membranes (3-5 years), and precision filter elements (3-6 months). Cycles depend on raw water quality. For replacement parts, visit [accessory supporting equipment].
Q2: What is the backwashing frequency and water consumption?A2: Quartz sand filters backwash every 48 hours, activated carbon filters every 6 days; backwash water consumption accounts for ≤5% of total treated water.
6.2 Warranty and Support
Q1: What is covered under the warranty?A1: The 12-month warranty includes manufacturing defects in equipment (pumps, filters, membranes, control system). Consumables and human-induced damages are excluded.
Q2: Can the system be remotely monitored and controlled?A2: Yes. The DCS system supports remote monitoring, data sharing, and remote control via computer or mobile device, enabling real-time status tracking and fault alerts.
6.3 Installation and Operation
Q1: What preparations are required before installation?A1: The customer needs to prepare a flat site (≥800㎡), stable power supply, groundwater extraction wells, and sewage discharge pipelines.
Q2: How does the system handle water quality emergencies?A2: Reserved process measures (enhanced dosing, additional filtration) can be activated via the control system; redundant disinfection equipment ensures water safety during unexpected contamination.
6.4 System Performance
Q1: What is the system’s operational availability?A1: Designed for 99% operational availability, with backup power, redundant pumps, and modular units that can be maintained without shutting down the entire plant.
Q2: How energy-efficient is the system compared to traditional water plants?A2: Energy consumption is 30-50% lower, thanks to gravity flow design, frequency conversion pumps, and efficient backwashing processes.
Would you like me to help you create a detailed operation and maintenance manual for this plant, including step-by-step startup/shutdown procedures, troubleshooting flowcharts, and spare parts management guides?
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