Bio Compost from floral waste(Nirmalya)

  • Project Initiated By: Conservation Club, SIES (Nerul) College of Arts, Science & Commerce
  • Guidance Provided By: Envirovigil, Thane
  • Project Handled By: Ms. Pooja Desai, Teacher In charge of biocomposting project and Co-ordinator MSc EVS, Mr. Rajesh Chavan, Lab Assistant, MSc Environmental Science, Mr. Nitin Mane- Lab Attendant, MSc EVS.

The Biocomposting Project of the Nirmalya generated by SIES (Nerul) Campus Temple was initiated on 28th March 2013 by the Conservation Club of SIES (Nerul) College of Arts, Science & Commerce with the support of our Principal. Dr. Rita Basu and under guidance of a Thane based NGO "Envirovigil". The main objective of the project is to convert waste into a useful resource. The temple waste (flowers, garlands and offerings) which otherwise were thrown in the municipal bin are now converted into a nutrient rich manure which can be used as an additive for providing the basic nutrients like NPK for the growth of the plants.

The project initiated with construction of the pit for the Biocomposting process to be carried out.

The project started with about 15 kg of flowers that was brought from the temple in the SIES (Nerul) Campus and a little amount of bioculture provided by Envirovigil. Bioculture is mixture of cultures of micro organisms specifically developed for accelerated anaerobic composting of organic wastes. It contains cultures of bacteria, fungi and actinomycetes along with enzymes, which facilitate bio conversion of organic waste into a bio stabilized compost speedily. It is free from any toxic or hazardous material

A bed of broken pieces of brick and baggase was made as a support structure for microbes to grow and as the initial source of energy (Carbon Source) for microbes. On the top of this bed, layering of flowers was done, followed by spraying of dilute suspension bioculture after every 4 to 5 layers.

On day to day basis flower waste is being added to the pit and a schedule of watering, mixing & addition of dilute bioculture is being done on regular basis. Water sprinkling is necessary to maintain the moisture level in the compost as, mixing is done to facilitate aeration and making oxygen available for the micro organisms to carry out the composting process.

Following are the pictures of the composting process:


Following the above process, the first lot of compost was ready in the second week of June 2013. This compost was dried, sieved and analyzed in the Environmental Science Laboratory for its basic parameters like pH and water holding capacity and nutrient value like C, N, P & K. The result of the analysis is as follows:

1. Organic Matter 0.32%
2. Nitrogen 3.4%
3. Potassium 2.4%
4. Phosphorus 0.9%
5. Water holding capacity 62%
6. pH 6.8

The analyzed compost then was packed into small packets of 150 gm each. These packets are being sold in the college campus to the teaching and the non-teaching staff. Initially it was started with 12/- per packet and now it is being sold at 15/- per packet of 150 gm. Till date about 62 packets have been sold.

With more production of compost, the plan is to commercialize the sale of compost by selling it to students and also to the devotees who visit the temple. With this project the wwe have been successful in converting waste in to a valuable resource.