# ENREC Engineers

> Environmental & civil engineers, consultants and contractors


## Posts

- [STP vs ETP: which treatment plant does your facility need?](http://enrecengineers.in/blog/stp-vs-etp-differences/): Understand the difference between STP and ETP, what each plant treats, and the information needed to choose a wastewater treatment system.
- [Planning an STP or ETP: what to prepare before requesting a quote](http://enrecengineers.in/blog/stp-etp-project-planning-checklist/): Use this STP and ETP project checklist to prepare flow data, water analysis, site details, scope and commissioning requirements before getting quotations.
- [STP and ETP maintenance: a practical checklist for facility managers](http://enrecengineers.in/blog/stp-etp-maintenance-checklist/): A practical STP and ETP maintenance checklist covering daily observations, preventive servicing, records, warning signs and operator handovers.
- [Zero liquid discharge explained: from wastewater to reusable water](http://enrecengineers.in/blog/zero-liquid-discharge-zld-process/): Understand the ZLD process, including pretreatment, RO, evaporation and solids handling, plus the operating questions to resolve before investment.
- [Treated wastewater reuse: where UF and RO fit in](http://enrecengineers.in/blog/treated-wastewater-reuse-uf-ro/): Plan treated wastewater reuse with a clear water balance. Learn what UF and RO remove, where disinfection fits and how to manage reject water.
- [MBBR, SBR or MBR? A practical guide to choosing an STP process](http://enrecengineers.in/blog/mbbr-sbr-mbr-comparison/): Compare MBBR, SBR and MBR sewage treatment processes, including space, operation, effluent quality and the questions to ask before choosing.

## Pages

- [Privacy information.](http://enrecengineers.in/privacy/): How this website handles your information.
- [Contact](http://enrecengineers.in/contact/): A new facility, an existing plant or a specific engineering challenge. Start a conversation with our team.
- [Blog](http://enrecengineers.in/blog/): Practical guides to water, wastewater and the plants that treat them.
- [Gallery](http://enrecengineers.in/gallery/): Treatment systems, industrial infrastructure and civil engineering.
- [Industries](http://enrecengineers.in/industries/): Engineering shaped by the demands of your process, your site and your people.
- [Company](http://enrecengineers.in/about/): Environmental and civil engineering consultants and contractors, based in Chennai.
- [Home](http://enrecengineers.in/)


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