WATER & WASTEWATER · BANGLADESH
Water and wastewater engineering in practice
I’m Arif Anwar (Ochin). I share practical lessons from water and wastewater engineering, plant operation, water reuse and technical training in Bangladesh. Choose a topic and try an example at your own pace.
Plant operations, maintenance and safety · Water efficiency, 3R and permissions · Environmental compliance and standards · Career and interview practice · Rivers, wetlands and living habitats · Solar energy and performance · About, field notes and practice resources
Plant operations, maintenance and safety
ETP O&M and troubleshooting
Follow the focused plant-learning series.
Excel for ETP and WTP O&M
Practice with logs, checklists and dashboards.
Health and safety
Plan safer work around treatment systems.
HIRA and risk controls
Connect hazards, controls and verification.
Commissioning and handover
Help the next shift own the process.
Sampling and laboratory QA/QC
Trace a sample from plant to result.
Water efficiency, 3R and permissions
3R water planning for textiles
Build a balanced reduction, reuse and recycling plan.
Water reuse quality and risks
Match treated water to an approved use.
Water Act, Water Rules and WARPO
Prepare a traceable water-permission file.
Environmental compliance and standards
ECR 2023: translation and original
Read the translation and official source together.
Environmental aspects and impacts
Turn plant activities into an improvement register.
ZDHC water and wastewater
Understand textile output and monitoring requirements.
Higg FEM water and wastewater
Organize performance evidence and records.
BNBC water supply and drainage
Connect building services with plant planning.
RSC plant safety
Review the relevant safety scope.
ISO management and monitoring
Find the right standard for the question.
AWS, GOTS, STeP and IFC
Explore stewardship, certification and EHS guidance.
Career and interview practice
ETP, RO & WTP Operator
Explain field observations and operating decisions.
In-Charge & Manager
Practice leadership and plant-performance questions.
ECR Officer & Compliance
Connect requirements, records and corrective action.
Rivers, wetlands and living habitats
Diabari waterlogging and waste
Follow waste and drainage connections.
Diabari wetlands and drainage
Explore connected water and habitat.
Turag environmental flow
Compare seasonal flow and its limitations.
Hilsa habitat and migration
Explore the interactive habitat scenarios.
Solar energy and performance
Industrial rooftop solar performance
Compare yield and useful O&M evidence.
Apartment rooftop solar planning
Start with common loads and roof constraints.
About, field notes and practice resources
About Arif Anwar
My engineering journey and learning interests.
Selected work
Engineering delivery, learning and published research.
Field notes
Browse the organized article collection.
Contact
Share a technical observation or question.
Practice resources
Find the bilingual worksheets and Excel tools.