Plastics & Rubber

Plastics & Rubber

West Bengal ecovio® Plus Project

Initiated by BASF and supported by stakeholders such as the Stump Jump Foundation (Australia), STEP Private Ltd (Mumbai), and the BCKV University (West Bengal), the West Bengal ecovio® Plus Project aimed to showcase the advantages of combining high-quality composts made from source-separated food waste and certified soil biodegradable mulch films. With the help of bags made of ecovio® from BASF, the project demonstrated that combining compost and soil biodegradable mulch film delivers greater synergistic benefits to the agricultural sector than using them individually. 

Country: India
Project duration: 2018-2019

With ecovio® M 2351, BASF offers a certified soil-biodegradable plastic for mulch films consisting of the biodegradable co-polyester polybutylene adipate terephthalate (PBAT) ecoflex® and other biodegradable polymers made from renewable raw materials. Mulch films made of ecovio® M 2351 can be ploughed into the soil after mechanical harvest as naturally occurring micro-organisms in the soil recognize the structure of the film as food they can metabolize. When growing tomatoes, mulch films made of ecovio® can lead to an increased yield from 15 to 50 percent, less water consumption and a better weed control with less herbicides compared to bare-soil farming.

Under the management of STEP, the people from the Kalyani collected food waste separately using ecovio® bags. This food waste was then transported to a specially constructed composting plant. There, the food waste and bags made of ecovio® were processed into high-quality compost that meets global best practices and standards. Together with the certified soil-biodegradable mulch film made of ecovio®, the resulting compost was then applied to the local fields, which are jointly managed by Stump Jump and BASF. The effect of the combination of compost and soil mulch film made of ecovio®on soil health and crop yield was then measured over time. The mulch film made of ecovio® biodegraded without leaving any persistent microplastics, which is in line with international standards for soil-biodegradable mulch films. The project and its results were supervised by the renowned Indian agricultural research university BCKV.

To study the impact of the source-separated compost and the certified soil biodegradable mulch film on local farming, we have carried out long-term experiments on local agricultural areas with our partner, BCKV University. First results indicate that the combined use of mulch film made of ecovio® and the source-separated compost provide yield-enhancing effects.

Rowan Williams

Project Manager

The project achieved remarkable outcomes for the local Kalyani municipality and served as a model for effective Circular Economy best practices and sustainable agriculture, improving both economic and environmental outcomes for the community. It showcased that source separation of food waste diverts it from dumpsites and therefore, reduces greenhouse gas emissions and improves urban amenities. In addition, the application of compost and soil biodegradable mulch film improved soils, increased yields, reduced both water and fertilizer consumption, saving scarce resources for the local farmers. Environmentally, the certified soil-biodegradable mulch film ensures no persistent microplastics are left in the soil.

The project provided improved economic opportunities for females through the Self-Help Groups working in community engagement, educating on the source separation of food waste. 

Compost prepared from properly managed source segregated municipal bio-wastes will definitely play a key role in soil quality and crop production by modifying soil physical, chemical, and biological properties in the vast area of organic carbon deficient soils of India.

 

Dr. Prasanta Kumar Patra

Professor at Dept. of Agril. Chem.& Soil Sci., BCKV University, West Bengal, India.

Building on the knowledge and insights gained from the project, the future focus will be on introducing source segregated food waste collection, developing the organics recycling industry to produce nutrient-rich compost and synergistically combining certified soil-biodegradable mulch films and the application of compost to promote more sustainable agricultural practices across India. Increased segregation of food waste at source and the use of certified soil-biodegradable mulch films will lead to economic and environmental improvements. By replicating these best practices and fostering multi-stakeholder partnerships, the project will serve as a guide for the development of similar sustainable waste management programs in smart cities and communities across India.

 

 

More on ecovio for certified soil-biodegradable mulch films: www.ecovio.basf.com/mulchfilm

More on BASF's biopolymers and their contribution to a circular economy: www.biopolymers.basf.com