SHARE:  
Monthly Updates from City of Cambridge DPW Recycling Division

Latest News on Recycling

After your recycling is collected curbside in Cambridge, our collection contractor drives the recycling to our recycling processor, Casella, located in Charlestown. Casella finished upgrading their processing facility with completely new equipment in June. The upgrades will increase efficiency through the use of robotics, artificial intelligence, and a complete overhaul to accommodate trends in the recycling industry. The Charlestown facility is among the largest in the US, processing up to 240,000 tons of recycling per year. To learn more about how your recyclables are being sorted using the latest and greatest in recycling technology, visit here.

Changes in What's Recyclable


Since 2019, the markets for recycling have changed quite a bit due to a new policy in China (the largest purchaser of recyclables). One of the largest changes to impact us was the removal of paper cartons** from the acceptable list.


However, there is a new change effective immediately. Black plastic containers are not accepted in recycling. Why? The recycling facility sorts plastics by bouncing a beam of light off them. Since black plastic absorbs light, it can't be sorted and will end up in the trash. We had hoped that the retrofit at Casella would allow for these to be captured for recycling, but the market for recycling black plastic is not good. The pigment in the plastic makes it nearly impossible to be recycled into a new product.


While we hope you exclude black plastics in your recycling, it's more critically important to remind friends and neighbors to not recycle the following damaging items:


  1. Batteries (these can cause fires if compressed at facility!)
  2. Plastic bags and films (i.e. shipping pillows, bubble wrap, bubble envelopes, etc)
  3. Tanglers (i.e. cords, e-waste, hangers)


**Paper cartons are containers used to contain liquids (milk, juice, soup, ice cream, etc). Paper cartons are not the same as paperboard (i.e. cereal boxes, cracker boxes) and cardboard; both of those are recyclable.


See here for more info on recycling in Cambridge.

Summer Composting Tips


Composting is not as easy in the summer when heat causes food to break down faster. Here are a few ideas to help keep your compost clean and odor-free:

·        Change your compost bag every 3-4 days (or sooner if it starts to smell).

·        Store food waste in the freezer or refrigerator in a compost bag and drop it into your compost cart just before collection.

·        Wrap meat, poultry, and fish in newspaper, napkins, or paper towels.

·        To get rid of summertime fruit flies, set a trap on the counter near your kitchen bin. Place a small bottle of cider vinegar with a few drops of dish soap added to it (see image).

·        If there is liquid at the bottom of your cart, dump it onto grass or soil.

·        To absorb liquid, line your compost cart with a paper shopping bag.

Get Your Building Composting


Since bringing composting to 1 to 12-unit buildings, DPW has expanded the program to 220 residential buildings ranging in size from 13 to 486 units. This summer, DPW is scheduling meet-ups with trustees and property managers to help more large buildings (over 12 units) join the program starting in September. If you would like your building to be considered for compost collection, please fill out this form.

Cambridge DPW Visits UTEC

Since 2019, the City has contracted with UTEC to collect and recycle mattresses. UTEC is a nonprofit based in Lowell with a mission "to ignite and nurture the ambition of our most disconnected young people to trade violence and poverty for social and economic success." Last month, several community members and DPW staff visited UTEC to learn about the organization, learn how mattresses are recycled, and other ventures they offer to help people and the planet. Thank you, UTEC!

New Textile Drop-Off Bins


The Cambridgeport School on Elm Street in The Port now has a textile drop-off bin. Last month, we announced that the Haggerty School has textile bins too. Thanks for diverting textiles from the trash!

See here for closest locations for you to drop-off textiles (or schedule a free pick-up from your home).

Upcoming Dates



Email us to share other waste-related events!

Click Here to Join This Mailing List!

What Are We Reading?



(Video) Recycling used oyster shells on Cape Cod (CBS News


Firsthand experience on shopping for secondhand furniture (Boston.com)


Recycling plastics from research labs (MIT News)


How to Recycle a 14-Story Office Tower (NYTimes)

Facebook  Twitter