Winter Challenges in Wastewater Treatment: How to Maintain STP & ETP Performance?
Winter poses serious challenges for sewage treatment plants (STP) and effluent treatment plants (ETP). As temperatures drop, microbial activity slows down, leading to foaming, poor sludge settling, and decreased treatment efficiency. Without proactive solutions, plants struggle to meet discharge norms and maintain operational efficiency.
Why Does Wastewater Treatment Fail in Winter?
- Reduced Microbial Activity: Bacteria responsible for breaking down organic waste slow down as temperatures drop below 15°C. At 10°C or lower, microbial performance declines sharply.
- Foaming Issues: Due to bacterial imbalance, white foaming or chocolate-brown foaming appears in aeration tanks, affecting treatment efficiency.
- Poor Sludge Settling: Weak Mixed Liquor Suspended Solids (MLSS) fail to settle properly, leading to turbid effluent.
- Higher Sludge Wastage: More sludge needs to be processed, increasing energy and chemical costs.
- Increased Treatment Time: The plant needs more oxygen and nutrients to function at normal efficiency, further raising operational costs.
How can plant operators tackle these winter challenges effectively?
Winter Wastewater Treatment Solutions
To maintain STP and ETP efficiency in cold weather, follow these key steps:
1. Optimize Plant Operation
- Reduce feed flow rate to ease microbial load.
- Increase sludge recirculation to maintain bacterial concentration.
- Minimize sludge wastage to retain active biomass.
- Cover aeration tanks to prevent excessive heat loss.
2. Strengthen MLSS with SUPER 24
A robust MLSS is essential for winter wastewater treatment. SUPER 24 is a better alternative to Urea and DAP, providing micronutrients for microbial health. It contains cold-resistant bacteria that sustain treatment efficiency even at low temperatures.
3. Improve Oxygen Levels with OXYSUPER
Low dissolved oxygen levels slow down bacteria. OXYSUPER enhances oxygen availability, boosting microbial activity and improving water clarity within 10 days.
4. Use SUPER NUTRIENTS for Balanced Microbial Growth
Cold weather reduces nutrient absorption by microbes. SUPER NUTRIENTS supply essential macro- and micronutrients, ensuring optimal bacterial performance across MBBR, MBR, and CAS technologies.
Success Story: Improved STP Performance in Winter
A 350 KL STP at a hotel faced severe foaming and turbid water issues when temperatures dropped to 13°C. The ETP head noticed bulk sludge formation, but MLSS was weak. By using SUPER 24 and OXYSUPER, water clarity improved within 10 days, and foaming subsided. The plant continued operating smoothly despite the cold conditions.
Why Wait? Fix Winter Wastewater Issues Today!
If your STP or ETP faces winter challenges, act now. By adjusting plant operation, strengthening MLSS, and using specialized products, you can maintain treatment efficiency even in extreme cold.
Contact Venlar today to learn more about our WINTER WASTE TREATMENT solutions and how we can help you tackle odor problems effectively.
हिवाळ्यात एसटीपी आणि ईटीपी कार्यक्षमतेवर परिणाम होतो. तापमान कमी झाल्याने जिवाणूंची क्रिया मंदावते, परिणामी फोमिंग, गढूळ पाणी आणि ट्रीटमेंट प्रक्रिया बिघडते.
सर्वोत्तम उपाय म्हणजे:
- फीड फ्लो कमी करा, स्लज रीसर्क्युलेट करा, आणि एरेशन टँक झाका।
- SUPER 24 वापरा, जो थंडीत जिवाणूंना सक्रिय ठेवतो आणि यूरिया व डीएपीपेक्षा प्रभावी आहे।
- OXYSUPER सह ऑक्सिजन पातळी वाढवा आणि १० दिवसांत पाण्याची गुणवत्ता सुधारवा।
हिवाळ्यात तुमच्या ट्रीटमेंट प्लांटची परफॉर्मन्स घसरत असेल, तर योग्य उपायांसह ती सुधारता येईल.
सर्दियों में एसटीपी और ईटीपी की कार्यक्षमता घट जाती है। कम तापमान के कारण माइक्रोबियल एक्टिविटी धीमी हो जाती है, जिससे फोमिंग, खराब स्लज सेटलिंग और ट्रीटमेंट एफिशिएंसी में गिरावट आती है।
इस समस्या का हल है:
- फीड फ्लो कम करें, स्लज रीसर्कुलेशन बढ़ाएं और एरेशन टैंक को कवर करें।
- SUPER 24 का उपयोग करें, जो माइक्रोब्स को ठंड में एक्टिव रखता है।
- OXYSUPER से ऑक्सीजन लेवल बढ़ाएं, जिससे पानी की गुणवत्ता में 10 दिनों के भीतर सुधार हो सकता है।
अगर सर्दियों में आपके वेस्टवॉटर ट्रीटमेंट प्लांट की परफॉर्मेंस प्रभावित हो रही है, तो सही समाधान अपनाकर इसे ठीक किया जा सकता है।