Comprehensive directory of international wastewater treatment regulations, discharge limits, equipment certifications, and country-specific compliance requirements.
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Access comprehensive equipment compliance standards and regulatory requirements for specific countries
Each country page includes detailed equipment compliance requirements, applicable standards, certification processes, and links to relevant equipment pages.
The directives, conventions and management systems that govern water-treatment discharge and equipment compliance worldwide
The IED (2010/75/EU) governs industrial discharges across the European Union through integrated permits built on Best Available Techniques (BAT) and their associated emission levels (BAT-AELs), which set the effective effluent targets for regulated installations.
In the United States, the Clean Water Act prohibits discharge to navigable waters except under a National Pollutant Discharge Elimination System (NPDES) permit. Technology-based effluent limitation guidelines and water-quality-based limits together fix the permit conditions.
For the North-East Atlantic, the OSPAR Convention sets the framework for offshore discharges, including the 30 mg/L dispersed-oil performance standard for produced water that drives offshore deoiling design.
Treatment plant placed on the EU market must meet the Pressure Equipment Directive (2014/68/EU) for pressure-containing items and, in explosive atmospheres, the ATEX Directive (2014/34/EU) — both central to compliant equipment supply.
ISO 9001 (quality), ISO 14001 (environmental) and ISO 45001 (occupational health and safety) provide the management-system backbone that underpins consistent, auditable compliance across projects.
Beyond national frameworks, site-specific discharge consents and trade-effluent agreements impose the precise numeric limits a plant must meet — always the binding design case for a given installation.
Explore wastewater standards and regulations by geographic region
European Union directives and country-specific regulations for wastewater treatment and equipment compliance including PED, IED, and ATEX.
EPA regulations, ASME standards, and country-specific requirements for wastewater discharge and treatment equipment.
Regional standards across the Asia Pacific including AS standards, JIS, and country-specific regulations.
Regional standards for the Middle East and Africa including UAE, Saudi Arabia, and South Africa regulations.
Reynolds & Bauhm equipment meets major international certification requirements
| Standard | Type | Industries | Description | Equipment |
|---|---|---|---|---|
| PED 2014/68/EU | Equipment | All | Pressure Equipment Directive - harmonised rules for pressure equipment design and manufacturing | DAF Units, Tanks |
| IED 2010/75/EU | Discharge | All Industrial | Industrial Emissions Directive - integrated pollution prevention and control | Bio Treatment |
| 91/271/EEC | Discharge | Municipal | Urban Wastewater Treatment Directive - collection, treatment, and discharge requirements | Municipal Systems |
| EU 1935/2004 | Food | FoodDairy | Food Contact Materials - materials intended to come into contact with food | Dairy Equipment |
| EU 852/2004 | Food | FoodDairyMeat | Food Hygiene Regulation - general hygiene requirements for food business operators | Food Systems |
| 2014/34/EU | Safety | Oil & GasChemical | ATEX Directive - equipment for explosive atmospheres | Oil & Gas Systems |
| Standard | Type | Description | Equipment |
|---|---|---|---|
| UKCA Marking | Equipment | Post-Brexit product marking for UK market | All Equipment |
| PER 2016 | Equipment | Pressure Equipment Regulations - UK implementation of PED | Pressure Vessels |
| EA Permits | Discharge | Environment Agency discharge permits for England | Pre-treatment |
| WRAS | Equipment | Water Regulations Advisory Scheme approval for water fittings | Filters, GAC |
| Standard | Type | Description | Equipment |
|---|---|---|---|
| WHG | Discharge | Water Resources Act - management of water resources and discharge permits | Screens |
| AbwV | Discharge | Wastewater Ordinance - requirements for wastewater discharge to waters | Clarifiers |
| DWA Rules | Equipment | German Water Association technical rules for wastewater treatment design | Bio Systems |
| TA Luft | Environmental | Technical Instructions Air Quality - emission control including odour | Aeration |
Scandinavian countries maintain some of the world's strictest environmental regulations. View detailed standards for:
| Standard | Type | Description | Equipment |
|---|---|---|---|
| ASME Section VIII | Equipment | Pressure vessel design and construction standards | Pressure Vessels |
| ASME U Stamp | Equipment | Certification mark for pressure vessels | DAF Units |
| EPA 40 CFR | Discharge | Environmental Protection Agency wastewater regulations | Pre-treatment |
| NPDES | Discharge | National Pollutant Discharge Elimination System permits | Municipal |
| FDA 21 CFR | Food | Food and Drug Administration regulations for food contact | Food Equipment |
| Standard | Type | Description | Equipment |
|---|---|---|---|
| CSA B51 | Equipment | Boiler, pressure vessel, and pressure piping code | Pressure Vessels |
| CCME Guidelines | Discharge | Canadian Council of Ministers of the Environment wastewater guidelines | Screens |
| Health Canada | Food | Food and Drugs Act regulations for food processing | Dairy Equipment |
| Standard | Type | Description | Equipment |
|---|---|---|---|
| AS 1210 | Equipment | Pressure vessels standard for design and construction | Pressure Vessels |
| AS/NZS 4020 | Food | Testing of products for use in contact with drinking water | Filters |
| State EPA | Discharge | State-based EPA requirements for wastewater discharge | Pre-treatment |
| Trade Waste | Discharge | Water authority trade waste agreements | DAF Units |
| Country | Key Standards | Notes | Equipment |
|---|---|---|---|
| China | GB Standards, HJ Standards | National standards for wastewater discharge (GB 8978) | Screens |
| Japan | JIS Standards, Water Pollution Control Act | Japanese Industrial Standards for equipment | Filtration |
| Singapore | NEA Regulations, PUB Standards | Very strict discharge limits to protect water resources | Clarifiers |
| India | CPCB Standards, SPCB Permits | Central and State Pollution Control Board regulations | Bio Treatment |
| Country | Key Standards | Notes | Equipment |
|---|---|---|---|
| UAE | AD EHSMS, Dubai Municipality | Emirate-specific regulations for wastewater discharge | Containerised |
| Saudi Arabia | MEWA, SASO Standards | Ministry of Environment, Water and Agriculture regulations | Desalination |
| Qatar | Qatar Construction Standards | ASHGHAL guidelines for wastewater systems | Tunnelling |
| Kuwait | EPA Kuwait, MEW | Environment Public Authority regulations | Screens |
| Standard | Type | Description | Equipment |
|---|---|---|---|
| SANS Standards | Equipment | South African National Standards for equipment | All Equipment |
| NWA | Discharge | National Water Act - water resource management | Mining |
| DWS | Discharge | Department of Water and Sanitation regulations | Municipal |
Typical wastewater discharge limits by country (direct discharge to water bodies)
| Country/Region | BOD (mg/L) | COD (mg/L) | TSS (mg/L) | N (mg/L) | P (mg/L) | pH |
|---|---|---|---|---|---|---|
| EU (Urban) | 25 | 125 | 35 | 15 | 2 | 6.0-9.0 |
| Germany | 20 | 110 | 30 | 18 | 1 | 6.5-8.5 |
| Denmark | 15 | 75 | 20 | 8 | 0.5 | 6.5-8.5 |
| USA (EPA) | 30 | 150 | 30 | 15 | 1-2 | 6.0-9.0 |
| Australia | 20 | 60 | 30 | 20 | 2 | 6.0-9.0 |
| Singapore | 20 | 60 | 30 | 20 | 2 | 6.0-9.0 |
| UAE | 30 | 150 | 50 | 25 | 3 | 6.0-9.0 |
Note: Limits vary by specific receiving water body sensitivity and local regulations. Always consult local authorities for current requirements.
Detailed compliance guides for specific industry sectors
AS/NZS 4020, PED 2014/68/EU, and food contact material regulations for dairy wastewater treatment systems.
Food safety, discharge limits, and equipment certification requirements for meat and poultry processing.
Australian AS 1210 and European PED, IED, EU 1935/2004 compliance for brewery wastewater equipment.
General food industry wastewater standards and compliance requirements.
Urban wastewater treatment standards and municipal discharge requirements.
GMP compliance and specialised wastewater treatment standards for pharmaceutical manufacturing.
Produced water treatment standards and ATEX compliance for hazardous environments.
Mine water treatment standards and tailings management regulations.
When standard certifications aren't enough, we design custom solutions to meet your unique regulatory needs
We work with notified bodies and certification agencies worldwide to obtain custom approvals for unique applications or emerging markets without established standards.
Explore Design ServicesFor extreme environments, corrosive media, or ultra-pure requirements, we select and certify specialised materials including super duplex, titanium, and exotic alloys.
View Bespoke SolutionsEquipment designed to meet multiple standards simultaneously (e.g., PED + ASME + custom local requirements) for global deployment flexibility.
Worldwide ComplianceIndependent verification and witness testing by accredited bodies including TUV, SGS, Bureau Veritas, Lloyd's Register, and DNV.
Pilot Testing ServicesOur engineering team has extensive experience navigating complex regulatory environments. Whether you need equipment for a new market, special industry requirements, or multi-standard certification, we can design and certify a solution that meets your needs.
Our regulatory experts can guide you through wastewater standards for any country or industry. Contact us for detailed compliance support and equipment certification guidance.
Our expertise spans multiple industries with sector-specific water treatment solutions.
