Chemical Composition of Polymer-Treated Anaerobic Digestates and Ash Blends

2977fc7b-f83e-4696-b06b-2f589ffa6965 contains laboratory data from 2016 on polymer-enhanced dewaterability of anaerobic digestates. The dataset includes measurements from a preliminary polymer selection experiment (WP1A1) and a main experiment (WP1A2) analyzing masses, supernatant volume, pH, and plant macronutrient profiles.

Use Cases

• Model the relationship between polymer dose and supernatant volume or solids separated to optimize dewatering processes.
• Analyze plant macronutrient profiles (Ca, Mg, P, K, TKN, S) in the liquid fraction of digestate and ash blends for potential nutrient recovery.
• Compare pH and total solids mass between digestate-only and digestate/biomass ash blend treatments to assess ash's impact.
• Identify the optimal polymer type and dose (WP1A1 data) for specific digestate compositions based on separation efficiency metrics.

Strengths

• Data originates from controlled laboratory experiments conducted in 2016, ensuring methodological consistency.
• Includes a two-phase experimental design covering polymer selection (WP1A1) and full treatment analysis (WP1A2).
• Measures a specific set of plant macronutrients (Ca, Mg, P, K, TKN, S) relevant to agricultural reuse.

Limitations

• Sample size is unknown, potentially limiting statistical power for model training.
• Data is from a single year (2016) and may not reflect variations in feedstock or conditions over time.
• Chemical composition measurements were split between internal and external laboratories, possibly introducing methodological variance.

Provenance

Source

Environmental Information Data Centre

Collection Method

Laboratory experiments measuring chemical composition after polymer addition and physical separation.

Time Range

2016

Freshness

null

Geography

United Kingdom